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Document And Entity Information - USD ($) $ in Millions	12 Months Ended
Document And Entity Information - USD ($) $ in Millions	Dec. 31, 2014	Feb. 28, 2015	Jun. 30, 2014
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2014
Entity Registrant Name	Stereotaxis, Inc.
Entity Central Index Key	0001289340
Current Fiscal Year End Date	--12-31
Trading Symbol	stxs
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		20,732,097
Entity Public Float			$ 65.5

Balance Sheets - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 7,270,301	$ 13,775,130
Accounts receivable, net of allowance of $131,464 and $383,077 in 2014 and 2013, respectively	6,480,499	7,558,152
Inventories	6,371,903	4,879,039
Prepaid expenses and other current assets	1,094,837	1,479,956
Total current assets	21,217,540	27,692,277
Property and equipment, net	894,728	1,184,589
Intangible assets, net	1,379,653	1,679,486
Long-term receivables		20,431
Other assets	388,850	499,613
Total assets	23,880,771	31,076,396
Current liabilities:
Short-term debt and current maturities of long-term debt		49,733
Accounts payable	2,353,133	3,512,339
Accrued liabilities	5,505,142	7,069,759
Deferred revenue	6,658,170	7,519,754
Warrants and debt conversion features	2,134,187	5,644,626
Total current liabilities	16,650,632	23,796,211
Long-term debt, less current maturities	18,388,764	18,481,478
Long-term deferred revenue	976,165	491,080
Other liabilities	414,928	9,622
Stockholders' deficit:
Preferred stock, par value $0.001; 10,000,000 shares authorized, none outstanding at 2014 and 2013
Common stock, par value $0.001; 300,000,000 shares authorized, 20,480,874 and 19,311,390 shares issued at 2014 and 2013, respectively	20,481	19,311
Additional paid in capital	446,241,703	441,888,155
Treasury stock, 4,015 shares at 2014 and 2013	(205,999)	(205,999)
Accumulated deficit	(458,605,903)	(453,403,462)
Total stockholders' deficit	(12,549,718)	(11,701,995)
Total liabilities and stockholders' deficit	$ 23,880,771	$ 31,076,396

Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Balance Sheets [Abstract]
Accounts receivable, allowance	$ 131,464	$ 383,077
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	20,480,874	19,311,390
Treasury stock, shares	4,015	4,015

Statements Of Operations - USD ($)	12 Months Ended
Statements Of Operations - USD ($)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue:
Systems	$ 7,839,006	$ 12,743,218	$ 19,672,983
Disposables, service and accessories	27,172,270	25,287,863	26,889,451
Total revenue	35,011,276	38,031,081	46,562,434
Cost of revenue:
Systems	4,204,719	6,870,954	9,905,528
Disposables, service and accessories	4,018,661	4,130,347	4,875,527
Total cost of revenue	8,223,380	11,001,301	14,781,055
Gross margin	26,787,896	27,029,780	31,781,379
Operating expenses:
Research and development	5,158,331	5,672,058	8,405,086
Sales and marketing	15,168,940	17,132,093	20,607,999
General and administrative	11,845,289	13,066,103	13,394,556
Total operating expenses	32,172,560	35,870,254	42,407,641
Operating loss	(5,384,664)	(8,840,474)	(10,626,262)
Other income (expense)	3,510,439	(47,349,378)	8,265,507
Interest income	7,084	5,800	7,361
Interest expense	(3,335,300)	(12,573,537)	(6,885,033)
Net loss	$ (5,202,441)	$ (68,757,589)	$ (9,238,427)
Net loss per common share:
Basic	$ (0.26)	$ (5.95)	$ (1.33)
Diluted	$ (0.26)	$ (5.95)	$ (1.33)
Weighted average shares used in computing net loss per common share:
Basic	19,945,038	11,554,566	6,944,928
Diluted	19,945,038	11,554,566	6,944,928

Statements Of Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2011	$ 5,543	$ 356,779,007	$ (205,999)	$ (375,407,446)	$ (18,828,895)
Shares at Dec. 31, 2011	5,543,157
Issuance of common stock and warrants, value	$ 2,415	10,409,260			10,411,675
Issuance of common stock and warrants, shares	2,415,339
Share-based compensation, value		2,293,731			2,293,731
Issuance of stock under purchase plan, value	$ 10	73,543			73,553
Issuance of stock under purchase plan, shares	10,315
Grant of restricted shares, net of forfeitures, value	$ 20	(20)
Grant of restricted shares, net of forfeitures, shares	19,885
Restricted stock vestings, value	$ 31	(31)
Restricted stock vestings, shares	29,919
Reclassification of warrants to liability		(3,501,863)			(3,501,863)
Net Loss				(9,238,427)	(9,238,427)
Balance at Dec. 31, 2012	$ 8,019	366,053,627	(205,999)	(384,645,873)	(18,790,226)
Shares at Dec. 31, 2012	8,018,615
Issuance of common stock and warrants, value	$ 7,743	64,586,770			64,594,513
Issuance of common stock and warrants, shares	7,742,717
Share-based compensation, value		1,050,260			1,050,260
Rights offering, value	$ 3,400	10,197,647			10,201,047
Rights offering, shares	3,400,349
Grant of restricted shares, net of forfeitures, value	$ (62)	62
Grant of restricted shares, net of forfeitures, shares	(61,910)
Restricted stock vestings, value	$ 211	(211)
Restricted stock vestings, shares	211,619
Net Loss				(68,757,589)	(68,757,589)
Balance at Dec. 31, 2013	$ 19,311	441,888,155	(205,999)	(453,403,462)	(11,701,995)
Shares at Dec. 31, 2013	19,311,390
Issuance of common stock and warrants, value	$ 879	2,852,794			2,853,673
Issuance of common stock and warrants, shares	878,077
Share-based compensation, value		1,501,045			1,501,045
Grant of restricted shares, net of forfeitures, shares	259
Restricted stock vestings, value	$ 291	(291)
Restricted stock vestings, shares	291,148
Net Loss				(5,202,441)	(5,202,441)
Balance at Dec. 31, 2014	$ 20,481	$ 446,241,703	$ (205,999)	$ (458,605,903)	$ (12,549,718)
Shares at Dec. 31, 2014	20,480,874

Statements Of Cash Flows - USD ($)	12 Months Ended
Statements Of Cash Flows - USD ($)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net loss	$ (5,202,441)	$ (68,757,589)	$ (9,238,427)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	413,773	919,136	1,300,188
Amortization of intangibles	299,833	299,833	299,833
Amortization of deferred finance costs and debt discount	240,601	7,703,336	2,977,119
Share-based compensation	1,501,045	1,050,260	2,293,731
Gain on debt conversion			(75,612)
Loss on asset disposal		36,103	12,444
Adjustment of warrants and convertible debt features	(3,510,439)	47,450,066	(8,189,895)
Interest due from issuance of stock		551,296	192,128
Changes in operating assets and liabilities:
Accounts receivable	1,098,084	4,065,106	(428,079)
Inventories	(1,492,864)	219,202	937,810
Prepaid expenses and other current assets	144,518	429,025	(760,474)
Other assets	110,763	(1,376)	7,773
Accounts payable	(1,159,206)	(44,349)	(2,053,493)
Accrued liabilities	(1,564,617)	1,717,571	(514,689)
Deferred revenue	(376,499)	(1,969,264)	1,125,079
Other liabilities	405,306		(3,094)
Net cash used in operating activities	(9,092,143)	(6,331,644)	(12,117,658)
Cash flows from investing activities
Purchase of equipment	(123,912)		(130,699)
Net cash used in investing activities	(123,912)		(130,699)
Cash flows from financing activities
Payments of term loan		(4,000,000)	(4,000,000)
Proceeds from revolving line of credit		37,237,131	54,806,154
Payments of revolving line of credit		(44,490,148)	(62,842,934)
Proceeds from subordinated convertible debt, net of issuance costs			7,738,351
Proceeds from Healthcare Royalty Partners debt		2,546,328	2,500,000
Payments of Healthcare Royalty Partners debt	(142,447)	(263,192)	(1,252,647)
Proceeds from issuance of stock and warrants, net of issuance costs	2,853,673	21,298,937	9,122,232
Net cash provided by financing activities	2,711,226	12,329,056	6,071,156
Net increase (decrease) in cash and cash equivalents	(6,504,829)	5,997,412	(6,177,201)
Cash and cash equivalents at beginning of period	13,775,130	7,777,718	13,954,919
Cash and cash equivalents at end of period	7,270,301	13,775,130	7,777,718
Supplemental disclosures of cash flow information:
Interest Paid	$ 3,028,884	$ 3,187,353	$ 3,258,900

Description Of Business	12 Months Ended
Description Of Business	Dec. 31, 2014
Description Of Business [Abstract]
Description Of Business	1. Description of Business Stereotaxis designs, manufactures and markets the Epoch Solution, which is an advanced remote robotic navigation system for use in a hospital’s interventional surgical suite, or “interventional lab”, that we believe revolutionizes the treatment of arrhythmias and coronary artery disease by enabling enhanced safety, efficiency and efficacy for catheter-based, or interventional, procedures. The Epoch Solution is comprised of the Niobe ES Remote Magnetic Navigation System (“Niobe ES system”), Odyssey Information Management Solution (“Odyssey Solution”), and the Vdrive Robotic Navigation System (“Vdrive system”), and related devices. The Niobe system is designed to enable physicians to complete more complex interventional procedures by providing image-guided delivery of catheters and guidewires through the blood vessels and chambers of the heart to treatment sites. This is achieved using externally applied magnetic fields that govern the motion of the working tip of the catheter or guidewire, resulting in improved navigation, efficient procedures and reduced x-ray exposure. In addition to the Niobe system and its components, Stereotaxis also has developed the Odyssey Solution, which consolidates all lab information enabling doctors to focus on the patient for optimal procedure efficiency. The system also features a remote viewing and recording capability called Odyssey Cinema, which is an innovative solution delivering synchronized content for optimized workflow, advanced care and improved productivity. This tool includes an archiving capability that allows clinicians to store and replay entire procedures or segments of procedures. This information can be accessed from locations throughout the hospital local area network and over the global Odyssey Network providing physicians with a tool for clinical collaboration, remote consultation and training. Our Vdrive system provides navigation and stability for diagnostic and therapeutic devices designed to improve interventional procedures. The Vdrive system complements the Niobe ES system control of therapeutic catheters for fully remote procedures and enables single-operator workflow and is sold as two options, the Vdrive system and the Vdrive Duo system. In addition to the Vdrive system and the Vdrive Duo system, we also manufacture and market various disposable components which can be manipulated by these systems. We promote the full Epoch Solution in a typical hospital implementation, subject to regulatory approvals or clearances. The full Epoch Solution implementation requires a hospital to agree to an upfront capital payment and recurring payments. The upfront capital payment typically includes equipment and installation charges. The recurring payments typically include disposable costs for each procedure, equipment service costs beyond warranty period, and software licenses. In hospitals where the full Epoch Solution has not been implemented, equipment upgrade or expansion can be implemented upon purchasing of the necessary upgrade or expansion. The core components of Stereotaxis systems, such as, Niobe system, Odyssey Solution, Cardiodrive and various disposable interventional devices have received regulatory clearance in the U.S., Europe, Canada, China, Japan and various other countries. We have received the CE Mark that allows us to market the Vdrive and Vdrive Duo systems with the V-CAS, V-CAS Deflect, V-Loop and V-Sono devices in Europe. In addition, we have received licensing to market the Vdrive and Vdrive Duo systems with the V-CAS, V-CAS Deflect, V-Loop and V-Sono devices in Canada. We have received regulatory clearance that allows us to market the Vdrive and Vdrive Duo systems with the V-CAS, V-Loop, and V-Sono devices in the United States. Since our inception, we have generated significant losses. As of December 31, 2014, we had incurred cumulative net losses of approximately $458.6 million. In May 2011, the Company introduced the Niobe ES system and as of December 31, 2014, the Company had an installed base of 119 Niobe ES systems. In 2015, the Company plans to continue developing the Niobe ES system with the goal of furthering clinical adoption. Between 2011 and 2014, the Company implemented a wide ranging plan to rebalance and reduce operating expenses by 15% to 20% on an annual run rate basis. Although we had an operating profit in the fourth quarter 2014, we expect to incur additional losses into 2015 as we continue the development and commercialization of our products, conduct our research and development activities and advance new products into clinical development from our existing research programs and fund additional sales and marketing initiatives. During 2015, we expect operating expenses to be generally consistent with 2014 with additional investment in certain targeted areas. We may be required to raise capital or pursue other financing strategies to continue our operations. Until we can generate significant cash flow from our operations, we expect to continue to fund our operations with cash resources primarily generated from the proceeds of our past and future public offerings, private sales of our equity securities and working capital and equipment financing loans. In the future, we may finance cash needs through the sale of other equity securities or non-core assets, strategic collaboration agreements, debt financings or through distribution rights. We cannot accurately predict the timing and amount of our utilization of capital, which will depend on a number of factors outside of our control. Our existing cash, cash equivalents and borrowing facilities may not be sufficient to fund our operating expenses and capital equipment requirements through the next 12 months, which would require us to obtain additional financing before that time. Further, our revolving line of credit with Silicon Valley Bank matures on March 31, 2015. We cannot assure you that additional financing will be available on a timely basis on terms acceptable to us or at all, that we will be able to engage in equity financings if our common stock is delisted from NASDAQ, or that such financing will not be dilutive to our stockholders. If adequate funds are not available to us, we could be required to delay development or commercialization of new products, to license to third parties the rights to commercialize products or technologies that we would otherwise seek to commercialize ourselves or to reduce the sales, marketing, customer support or other resources devoted to our products, any of which could have a material adverse effect on our business, financial condition and results of operations. In addition, we could be required to cease operations.

Summary Of Significant Accounting Policies	12 Months Ended
Summary Of Significant Accounting Policies	Dec. 31, 2014
Summary Of Significant Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	2. Summary of Significant Accounting Policies Cash and Cash Equivalents The Company considers all short-term investments purchased with original maturities of three months or less to be cash equivalents. The Company places its cash with high-credit-quality financial institutions and invests primarily in money market accounts. In 2012, we entered into a letter of credit to support a commitment in the amount of approximately $0.1 million. This letter of credit is valid through 2015. No cash was restricted at December 31, 2014 or 2013. Accounts Receivable and Allowance for Uncollectible Accounts Accounts receivable primarily include amounts due from hospitals and distributors for acquisition of magnetic systems, associated disposable device sales and service contracts. Credit is granted on a limited basis, with balances due generally within 30 days of billing. The provision for bad debts is based upon management’s assessment of historical and expected net collections considering business and economic conditions and other collection indicators. Financial Instruments Financial instruments consist of cash and cash equivalents, short-term investments, accounts receivable, accounts payable and debt. The carrying value of such amounts reported at the applicable balance sheet dates approximates fair value. See Note 9 for disclosure of the fair value of debt. The Company measures certain financial assets and liabilities at fair value on a recurring basis, including warrants. General accounting principles for fair value measurement established a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (“Level 1”) and the lowest priority to unobservable inputs (“Level 3”). See Note 12 for disclosure of fair value measurements. Inventory The Company values its inventory at the lower of cost, as determined using the first-in, first-out (FIFO) method, or market. The Company periodically reviews its physical inventory for obsolete items and provides a reserve upon identification of potential obsolete items. Property and Equipment Property and equipment consist primarily of leasehold improvements, computer, office, and research and demonstration equipment, and equipment held for lease and are stated at cost. Depreciation is calculated using the straight-line method over the estimated useful lives or life of the base lease term, ranging from three to ten years. Long-Lived Assets If facts and circumstances suggest that a long-lived asset may be impaired, the carrying value is reviewed. If this review indicates that the carrying value of the asset will not be recovered, as determined based on projected undiscounted cash flows related to the asset over its remaining life, the carrying value of the asset is reduced to its estimated fair value. Intangible Assets Intangible assets consist of purchased technology and intellectual property rights valued at cost on the acquisition date and amortized over their estimated useful lives of 10-15 years. If facts and circumstances suggest that an intangible asset may be impaired, the carrying value is reviewed. If this review indicates that the carrying value of the asset will not be recovered, as determined based on projected undiscounted cash flows related to the asset over its remaining life, the carrying value of the asset is reduced to its estimated fair value. Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and loss during the reporting period. Actual results could differ from those estimates. Revenue and Costs of Revenue The Company adopted Accounting Standards Update 2009-13, Multiple-Deliverable Revenue Arrangements (“ASU 2009-13”) in the fourth quarter of 2009, effective as of January 1, 2009. ASU 2009-13 permits management to estimate the selling price of undelivered components of a bundled sale for which it is unable to establish vendor-specific objective evidence (“VSOE”) or third-party evidence (“TPE”). This requires management to record revenue for certain elements of a transaction even though it might not have delivered other elements of the transaction, for which it was unable to meet the requirements for establishing VSOE or TPE. The Company believes that the guidance significantly improves the reporting of these types of transactions to more closely reflect the underlying economic circumstances. This guidance also prohibits the use of the residual method for allocating revenue to the various elements of a transaction and requires that the revenue be allocated proportionally based on the relative estimated selling prices. Under our revenue recognition policy, a portion of revenue for Niobe systems, Vdrive systems and certain Odyssey systems is recognized upon delivery, provided that title has passed, there are no uncertainties regarding acceptance, persuasive evidence of an arrangement exists, the sales price is fixed and determinable, and collection of the related receivable is reasonably assured. Revenue is recognized for other types of Odyssey systems upon completion of installation, since there are no qualified third party installers. When installation is the responsibility of the customer, revenue from system sales is recognized upon shipment since these arrangements do not include an installation element or right of return privileges. The Company does not recognize revenue in situations in which inventory remains at a Stereotaxis warehouse or in situations in which title and risk of loss have not transferred to the customer. Amounts collected prior to satisfying the above revenue recognition criteria are reflected as deferred revenue. Revenue from services and license fees, whether sold individually or as a separate unit of accounting in a multiple-deliverable arrangement, is deferred and amortized over the service or license fee period, which is typically one year. Revenue from services is derived primarily from the sale of annual product maintenance plans. We recognize revenue from disposable device sales or accessories upon shipment and establish an appropriate reserve for returns. The return reserve, which is applicable only to disposable devices, is estimated based on historical experience which is periodically reviewed and updated as necessary. In the past, changes in estimate have had only a de minimus effect on revenue recognized in the period. We believe that the estimate is not likely to change significantly in the future. Costs of systems revenue include direct product costs, installation labor and other costs, estimated warranty costs, and initial training and product maintenance costs. These costs are recorded at the time of sale. Costs of disposable revenue include direct product costs and estimated warranty costs and are recorded at the time of sale. Cost of revenue from services and license fees are recorded when incurred. Research and Development Costs Internal research and development costs are expensed in the period incurred. Amounts receivable from strategic alliances under research reimbursement agreements are recorded as a contra-research and development expense in the period reimbursable costs are incurred. There were no material receivables at December 31, 2014 or 2013 under these types of agreements. Advance receipts or other unearned reimbursements are included in accrued liabilities on the accompanying balance sheet until earned. Share-Based Compensation Stock options or stock appreciation rights issued to certain non-employees are recorded at their fair value as determined in accordance with general accounting principles for share-based payments and accounting for equity instruments that are issued to other than employees for acquiring, or in conjunction with selling, goods or services, and recognized over the service period. Deferred compensation for options granted to non-employees is remeasured on a quarterly basis through the vesting or forfeiture date. The Company utilized the Black-Scholes valuation model to determine the fair value of share-based payments at the date of previously issued grant using risk-free interest rate based on the Treasury yield on the date of the grant and expected volatility based on the Company’s historical volatility over the expected term of the option. The resulting compensation expense is recognized over the requisite service period, generally one to four years. Compensation expense is recognized only for those awards expected to vest, with forfeitures estimated based on the Company’s historical experience and future expectations. Restricted shares and units granted to employees are valued at the fair market value at the date of grant. The Company amortizes the amount to expense over the service period on a straight-line basis for those shares with graded vesting. If the shares are subject to performance objectives, the resulting compensation expense is amortized over the anticipated vesting period and is subject to adjustment based on the actual achievement of objectives. Shares purchased by employees under the 2004 Employee Stock Purchase Plan were considered to be compensatory and were accounted for in accordance with general accounting principles for share-based payments. Shares purchased by employees under the 2009 Employee Stock Purchase Plan were considered to be non-compensatory. Net Earnings (Loss) per Common Share On July 10, 2012, the Company effected a one-for-ten reverse stock split of the Company’s common stock. The net loss per common share, shares outstanding, and weighted average shares outstanding reported in the financial statements and notes to the financial statements for the periods ending December 31, 2014, 2013, and 2012 are presented on a post-split basis. See Note 11 for additional discussion of the reverse stock split. Basic earnings (loss) per common share are computed by dividing the net loss for the period by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share are computed by dividing the loss for the period by the weighted average number of common and common equivalent shares outstanding during the period. In addition, the application of the two-class method of computing earnings per share under general accounting principles for participating securities is not applicable because the Company’s unearned restricted shares do not contractually participate in its losses. The Company did not include any portion of unearned restricted shares, outstanding options, stock appreciation rights or warrants in the calculation of diluted loss per common share because all such securities are anti-dilutive for all periods presented. The application of the two-class method of computing earnings per share under general accounting principles for participating securities is not applicable during these periods because those securities do not contractually participate in its losses. As of December 31, 2014, the Company had 487,146 shares of common stock issuable upon the exercise of outstanding options and stock appreciation rights at a weighted average exercise price of $17.21 per share and 2,197,883 shares of common stock issuable upon the exercise of outstanding warrants at a weighted average exercise price of $6.12 per share. The Company had no unearned restricted shares outstanding for the period ended December 31, 2014. Income Taxes In accordance with general accounting principles for income taxes, a deferred income tax asset or liability is determined based on the difference between the financial statement and tax basis of assets and liabilities as measured by the enacted tax rates that will be in effect when these differences reverse. The Company provides a valuation allowance against net deferred income tax assets unless, based upon available evidence, it is more likely than not the deferred income tax assets will be realized. Product Warranty Provisions The Company’s standard policy is to warrant all systems against defects in material or workmanship for one year following installation. The Company’s estimate of costs to service the warranty obligations is based on historical experience and current product performance trends. A regular review of warranty obligations is performed to determine the adequacy of the reserve and adjustments are made to the estimated warranty liability (included in other accrued liabilities) as appropriate. Patent Costs Costs related to filing and pursuing patent applications are expensed as incurred, as recoverability of such expenditures is uncertain. Concentrations of Risk The majority of the Company’s cash, cash equivalents and investments are deposited with one major financial institution in the U.S. Deposits in this institution exceed the amount of insurance provided on such deposits. Biosense Webster Inc. accounted for $4,651,490, $3,902,178, and $3,447,386, or 13%, 10% and 7%, of total net revenue for the years ended December 31, 2014, 2013, and 2012, respectively. No other single customer accounted for more than 10% of total revenue for the year ended December 31, 2014. Reclassifications Common stock and additional paid-in capital in the prior year’s financial statements have been reclassified to reflect the one-for-ten reverse stock split effected on July 10, 2012. Refer to Note 11 for additional discussion of the reverse stock split. Recently Issued Accounting Pronouncements In August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU” or “Update”) No. 2014-15, to communicate amendments to FASB Account Standards Codification Subtopic 205-40, “Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern.” The ASU requires management to evaluate relevant conditions, events and certain management plans that are known or reasonably knowable as of the evaluation date when determining whether substantial doubt about an entity’s ability to continue as a going concern exists. Management will be required to make this evaluation for both annual and interim reporting periods. Management will have to make certain disclosures if it concludes that substantial doubt exists or when it plans to alleviate substantial doubt about the entity’s ability to continue as a going concern. The standard is effective for annual periods ending after December 15, 2016 and for interim reporting periods starting in the first quarter of 2017. Early adoption is permitted. We are currently evaluating the impact of adopting this accounting standard update on our financial statement disclosures and have not concluded on an adoption method. In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers," which converges the FASB's and the International Accounting Standards Board's current standards on revenue recognition. The standard provides companies with a single model to use in accounting for revenue arising from contracts with customers and supersedes current revenue guidance. The standard is effective for annual and interim periods beginning after December 15, 2016. Early adoption is not permitted. The standard permits companies to either apply the adoption to all periods presented, or apply the requirements in the year of adoption through a cumulative adjustment. We are currently evaluating the impact of adopting this accounting standard update on our financial statements and disclosures and have not concluded on an adoption method. In February 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU” or “Update”) 2013-02, “Comprehensive Income: Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” which adds new disclosure requirements for items reclassified out of accumulated other comprehensive income (“AOCI”). The update requires that the Company present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of AOCI based on its source and the income statement line items affected by the reclassification. The guidance is effective for interim and annual reporting periods beginning on or after December 15, 2012. As the Company has no items of other comprehensive income, the Company is not required to report accumulated other comprehensive income.

Inventory

12 Months Ended

Dec. 31, 2014

Inventory [Abstract]

Inventory

3. Inventory

Inventory consists of the following:


	December 31, 2014	December 31, 2013

Raw materials	$ 2,746,926	$ 3,141,111
Work in process	374,236	364,779
Finished goods	3,310,375	1,453,362
Reserve for obsolescence	(59,634)	(80,213)
Total inventory	$ 6,371,903	$ 4,879,039

Prepaid Expenses And Other Current Assets

12 Months Ended

Dec. 31, 2014

Prepaid Expenses And Other Current Assets [Abstract]

Prepaid Expenses And Other Current Assets

4. Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following:



	December 31, 2014	December 31, 2013

Prepaid expenses	$ 679,740	$ 591,305
Deferred financing costs	492,385	622,949
Deposits	311,562	692,616
Deferred cost of revenue	-	72,699
Total prepaid expenses and other assets	1,483,687	1,979,569
Less: Noncurrent prepaid expenses and other assets	(388,850)	(499,613)
Total prepaid expenses and other current assets	$ 1,094,837	$ 1,479,956

Certain prior year amounts have been reclassified to conform to the 2014 presentation.

Property And Equipment

12 Months Ended

Dec. 31, 2014

Property And Equipment [Abstract]

Property And Equipment

5. Property and Equipment

Property and equipment consist of the following:


	December 31,	December 31,
	2014	2013

Equipment	$ 8,264,804	$ 8,143,000
Equipment held for lease	303,412	303,412
Leasehold improvements	2,328,381	2,328,381
	10,896,597	10,774,793
Less: Accumulated depreciation	(10,001,869)	(9,590,204)
Net property and equipment	$ 894,728	$ 1,184,589

Intangible Assets	12 Months Ended
Intangible Assets	Dec. 31, 2014
Intangible Assets [Abstract]
Intangible Assets	6. Intangible Assets As of December 31, 2014 and 2013, the Company had total intangible assets of $3,665,000. Accumulated amortization at December 31, 2014 and 2013, was $2,285,347 and 1,985,514, respectively. Amortization expense for the years 2014, 2013, and 2012 was $299,833 per year, as determined under the straight-line method. The estimated future amortization of intangible assets is $299,833 annually through July 2018, decreasing thereafter to $166,500 annually through May 2020.

Accrued Liabilities

12 Months Ended

Dec. 31, 2014

Accrued Liabilities [Abstract]

Accrued Liabilities

7. Accrued Liabilities

Accrued liabilities consist of the following:


	December 31,	December 31,
	2014	2013

Accrued salaries, bonus, and benefits	$ 2,557,557	$ 3,565,385
Accrued rent	1,407,740	1,499,942
Accrued licenses and maintenance fees	661,766	302,384
Accrued interest	493,616	498,058
Accrued warranties	364,548	501,212
Accrued taxes	332,364	360,475
Other	102,479	351,925
Total accrued liabilities	5,920,070	7,079,381
Less: Long term accrued liabilities	(414,928)	(9,622)
Total current accrued liabilities	$ 5,505,142	$ 7,069,759

Certain prior year amounts have been reclassified to conform to the 2014 presentation.

Deferred Revenue

12 Months Ended

Dec. 31, 2014

Deferred Revenue [Abstract]

Deferred Revenue

8. Deferred Revenue

Deferred revenue consists of the following:


	December 31,	December 31,
	2014	2013

Product shipped, revenue deferred	$ 457,348	$ 1,368,007
Customer deposits	1,065,371	421,544
Deferred service and license fees	6,111,616	6,221,283
	7,634,335	8,010,834
Less: Long-term deferred revenue	(976,165)	(491,080)
Total current deferred revenue	$ 6,658,170	$ 7,519,754

Long-Term Debt And Credit Facilities

12 Months Ended

Dec. 31, 2014

Long-Term Debt And Credit Facilities [Abstract]

Long-Term Debt And Credit Facilities

9. Long-Term Debt and Credit Facilities

Debt outstanding consists of the following:


	December 31, 2014		December 31, 2013
	Carrying	Estimated	Carrying	Estimated
	Amount	Fair Value	Amount	Fair Value

Healthcare Royalty Partners debt	$ 18,388,764	$ 18,388,764	$ 18,531,211	$ 18,531,211
Less current maturities	—	—	(49,733)	(49,733)
Total long term debt	$ 18,388,764	$ 18,388,764	$ 18,481,478	$ 18,481,478

Contractual principal maturities of debt at December 31, 2014 are as follows:


2015	$	-
2016		-
2017		-
2018		18,388,764
2019		-
2020 and Beyond		-
	$	18,388,764

In accordance with general accounting principles for fair value measurement, the Company’s debt and credit facilities were measured at fair value as of December 31, 2014 and December 31, 2013. Long-term debt fair value estimates are based on estimated borrowing rates to discount the cash flows to their present value (Level 3).

The revolving line of credit and the Company’s obligations with Healthcare Royalty Partners II, L.P. (collectively, the “Credit Agreements”) are secured by substantially all of the Company’s assets. The Company is required under the Credit Agreements to maintain its primary operating account and the majority of its cash and investment balances in accounts with the primary lender.

Revolving line of credit

The Company has had a working capital line of credit with its primary lender, Silicon Valley Bank, since 2004. The revolving line of credit is secured by substantially all of the Company’s assets. The Company is also required under the revolving line of credit to maintain its primary operating account and the majority of its cash and investment balances in accounts with its primary lender. The facility was last amended on March 28, 2014 extending the maturity date one year to March 31, 2015. The current agreement requires the Company to maintain a minimum tangible net worth of not less than (no worse than) negative $21 million, with such minimum requirement subject to increase under certain circumstances as described in the agreement, and to maintain a liquidity ratio of greater than 1.75:1.00, excluding certain short term advances from the calculation.

As of December 31, 2014, the Company had no outstanding debt under the revolving line of credit. Draws on the line of credit are made based on the borrowing capacity one week in arrears. As of December 31, 2014 the Company had a borrowing capacity of $4.5 million based on the Company’s collateralized assets.

Between 2008 and August 2013, the Company’s agreement with its primary lender was secured in part by guarantees provided certain affiliates of current or former members of our Board of Directors, “the Lenders”. In exchange for their guarantees, the Company issued the Lenders five year warrants at each extension of the revolving line of credit. In August, 2013, the Company and the Bank agreed to eliminate the guarantees provided by the Lenders.

Term note

In 2010, the Company entered into a $10 million term loan maturing on December 31, 2013, with $2 million of principal due in 2011 and $4 million of principal due in each of 2012 and 2013. Interest on the term loan accrued at the rate of prime plus 3.5%. Under this agreement, the Company provided its primary lender with warrants to purchase 11,111 shares of common stock. The warrants are exercisable at $36.00 per share, beginning on December 17, 2010 and expiring on December 17, 2015. The fair value of these warrants of $228,332, calculated using the Black-Scholes method, was deferred and amortized to interest expense ratably over the life of the term loan. The term note was paid in full in September 2013.

Healthcare Royalty Partners Debt

In November 2011, the Company entered into a loan agreement with Healthcare Royalty Partners II, L.P. (formerly “Cowen Healthcare Royalty Partners II, L.P.”). Under the agreement the Company borrowed from Healthcare Royalty Partners $15 million. The Company was permitted to borrow up to an additional $5 million in the aggregate based on the achievement by the Company of certain milestones related to Niobe system sales in 2012. On August 8, 2012, the Company borrowed an additional $2.5 million based upon achievement of a milestone related to Niobe system sales for the nine months ended June 30, 2012. On January 31, 2013, the Company borrowed an additional $2.5 million based upon achievement of a milestone related to Niobe system sales for the twelve months ended December 31, 2012. The loan will be repaid through, and secured by, royalties payable to the Company under its Development, Alliance and Supply Agreement with Biosense Webster, Inc. The Biosense Agreement relates to the development and distribution of magnetically enabled catheters used with Stereotaxis' Niobe system in cardiac ablation procedures. Under the terms of the Agreement, Healthcare Royalty Partners will be entitled to receive 100% of all royalties due to the Company under the Biosense Agreement until the loan is repaid. The loan is a full recourse loan, matures on December 31, 2018, and bears interest at an annual rate of 16% payable quarterly with royalties received under the Biosense Agreement. If the payments received by the Company under the Biosense Agreement are insufficient to pay all amounts of interest due on the loan, then such deficiency will increase the outstanding principal amount on the loan. After the loan obligation is repaid, the royalties under the Biosense Agreement will again be paid to the Company. The loan is also secured by certain assets and intellectual property of the Company. The Agreement also contains customary affirmative and negative covenants. The use of payments due to the Company under the Biosense Agreement was approved by our primary lender.

Subordinated Convertible Debentures

In May 2012, the Company entered into a securities purchase agreement with certain institutional investors whereby the Company agreed to sell an aggregate of approximately $8.5 million in aggregate principal amount of unsecured, subordinated, convertible debentures (the “Debentures”), which became convertible into shares of the Company’s common stock at a conversion price of $3.361 per share (or approximately 2.5 million shares in the aggregate), on July 10, 2012, the date that the Company received shareholder approval for the transaction. The purchasers of the Debentures also received warrants, which were scheduled to expire in November 2018, to purchase an aggregate of approximately 2.5 million shares of the Company’s common stock at an exercise price of $3.361 per share. The Debentures bore interest at 8% per year and were scheduled to mature on May 7, 2014. In addition, the Company had the ability to issue shares of its common stock in lieu of cash interest payments under certain circumstances, and following the registration of the shares for resale, the Company issued shares in lieu of cash interest payments.

The Company recorded the Debentures on the balance sheet net of the debt discount of $7.6 million. The debt discount was due to warrants issued in conjunction with the Debentures and the debt conversion features. Upon issuance of the Debentures, the fair value of the warrants and derivative liability were $4.1 million and $3.5 million, respectively. The debt discount was amortized over the life of the loan using the effective interest method and the warrants and derivative liability were recorded at fair value on each reporting period. Refer to Note 12 for additional discussion of the fair value of the warrants and conversion features.

On August 7, 2013, holders of Convert Warrants exercised all of their Convert Warrants for an aggregate of approximately 2.5 million shares of our common stock, resulting in cash proceeds of approximately $8.5 million. In addition, holders of all of the Debentures exchanged the balance of their unconverted Debentures for an aggregate of approximately 2.7 million shares of the Company’s common stock and additional warrants (the “Exchange Warrants”) to purchase approximately 2.5 million shares, having an exercise price of $3.361 per share. On August 8, 2013, certain former holders of the Debentures exercised Exchange Warrants to purchase an aggregate of 1.4 million shares of common stock in cashless net exercises as provided for in the Exchange Warrants, which resulted in the issuance to such funds of an aggregate of 0.8 million shares of common stock but no net proceeds to the Company. The Company is relying on the exemption from registration afforded by Section 4(a)(2) of the Securities Act of 1933, as amended, based on representations to the Company made by the warrant holders. Refer to Note 11 for discussion of total outstanding warrants.

The mark-to-market expense associated with the adjustment of warrants and convertible debt features in connection with the third quarter 2013 capital transactions are included in other expense for the year ended December 31, 2013. The write-off of the unamortized debt discount of $5.4 million is included in interest expense for the year ended December 31, 2013.

Lease Obligations

12 Months Ended

Dec. 31, 2014

Lease Obligations [Abstract]

Lease Obligations

10. Lease Obligations

The Company leases its facilities under operating leases. For the years ended December 31, 2014, 2013, and 2012 rent expense was $1,068,972, $1,925,813, and $1,697,153, respectively.

In January 2006, the Company moved its primary operations into new facilities. The facility is subject to a lease which expires in December 31, 2018. Under the terms of the lease, the Company has options to renew for up to three additional years. The lease contains an escalating rent provision which the Company has straight-lined over the term of the lease.

In the third quarter of 2013, the Company modified the existing lease agreement to terminate approximately 13,000 square feet of unimproved space. The costs associated with the termination were $515,138, and were accrued as a rent liability as of September 30, 2013. As of December 31, 2014, the remaining accrued costs associated with the termination were $354,680.

The future minimum lease payments under non-cancelable leases as of December 31, 2014 are as follows:



Year		Operating Lease
2015	$	1,584,709
2016		1,930,829
2017		1,955,243
2018		2,008,832
Total minimum lease payments	$	7,479,613

Stockholders' Equity

12 Months Ended

Dec. 31, 2014

Stockholders' Equity [Abstract]

Stockholders' Equity

11. Stockholders’ Equity

The holders of common stock are entitled one vote for each share held and to receive dividends whenever funds are legally available and when declared by the Board of Directors subject to the prior rights of holders of all classes of stock having priority rights as dividends and the conditions of the Revolving Credit Agreement. No dividends have been declared or paid as of December 31, 2014.

Listing Transfer to NASDAQ Capital Market

On August 15, 2013, the NASDAQ Listing Qualifications Panel (the “Panel”) granted approval of the Company’s request to transfer its listing to The NASDAQ Capital Market from The NASDAQ Global Market. The Company’s securities began trading on the NASDAQ Capital Market effective August 19, 2013.

Reverse Stock Split

On July 10, 2012, the Company filed a Certificate of Amendment to our Amended and Restated Certificate of Incorporation to implement a one-for-ten reverse split of our common stock (the “Reverse Stock Split”). The Reverse Stock Split was effective as of July 10, 2012, and the Company’s common stock began trading on a post-split basis on July 11, 2012.

As a result of the Reverse Stock Split, each ten shares of the Company’s issued and outstanding common stock were automatically combined and converted into one issued and outstanding share of common stock. The Reverse Stock Split affected all issued and outstanding shares of the Company’s common stock, as well as common stock underlying stock options, stock appreciation rights, restricted stock, restricted stock units, warrants and convertible debentures outstanding immediately prior to the effectiveness of the Reverse Stock Split. The Reverse Stock Split reduced the number of shares of the Company’s common stock outstanding from approximately 78 million to 7.8 million at the time of the Reverse Stock Split. In addition, the Amendment increased the number of authorized shares of the Company’s common stock from 100 million to 300 million. The Reverse Stock Split did not alter the par value of common stock, which remained $0.001 per share, or modify any voting rights or other terms of the Company’s common stock. Unless otherwise indicated, all information set forth herein gives effect to such Reverse Stock Split.

Issuances of Common Stock

In May 2012, the Company entered into a Stock and Warrant Purchase Agreement with certain institutional investors whereby it agreed to sell an aggregate of approximately 2.17 million shares of the Company's common stock (the “PIPE Common Stock”) at a price of $3.361 per share, together with six-year warrants at a price of $1.25 per share to purchase an aggregate of approximately 2.17 million shares of common stock having an exercise price of $3.361 per share (the “PIPE Warrants”). Each purchaser received a PIPE Warrant to purchase one share of common stock for every share of PIPE Common Stock purchased. Net proceeds from the sale of the securities were approximately $9.1 million, after placement agent fees and other offering expenses. The Company used the funds to repay $7 million of the revolving credit facility guaranteed by the Lenders and plans to use the balance for working capital and general corporate purposes.

Between March and July 2013, the Company amended its agreement with its primary lender and extended the $3 million guarantee of the revolving credit facility provided by affiliates of current and former members of the Board of Directors, “the Lenders”. As a result of these extensions, the Company issued the Lenders warrants to purchase common stock. The lenders received 113,636 warrants at $1.98 per share, 48,387 warrants at $1.55 per share, and 14,313 warrants at $5.24 per share.

On August 7, 2013, venture funds affiliated with Sanderling Ventures received an aggregate of 183,478 shares of common stock based upon the cashless exercise of warrants to purchase an aggregate of 262,450 shares of common stock. These warrants were comprised of 75,758 warrants with an exercise price of $1.98 per share, 156,204 warrants with an exercise price of $3.361 per share and 30,488 warrants with an exercise price of $4.10 per share. The warrants were issued by the Company in private placements in 2012 and 2013 in connection with the extension of previously disclosed guarantees.

On August 13, 2013, venture funds affiliated with Sanderling Ventures exercised PIPE Warrants to purchase an aggregate of 650,619 shares of common stock in a cashless net exercise as provided for in the PIPE Warrants, which resulted in the issuance to such funds of an aggregate of 308,194 shares of common stock. As a result, there were no net proceeds to the Company.

On August 16, 2013, certain affiliates of Franklin Templeton exercised PIPE Warrants to purchase an aggregate of 650,618 shares of common stock for cash. The Company received an aggregate of $2,186,727 gross proceeds from the sale.

On August 16, 2013, Alafi Capital Company exercised PIPE Warrants to purchase an aggregate of 261,241 shares of common stock for cash. The Company received an aggregate of $878,031 gross proceeds from the sale. Refer to Note 9 for the discussion of warrants issued in conjunction with debt offerings.

On November 27, 2013, the Company announced the results of its previously announced offering of subscription rights to purchase shares of its common stock, par value $0.001 per share. Pursuant to the rights offering, subscription rights to purchase approximately 3.4 million shares of common stock were exercised, resulting in gross proceeds to Stereotaxis of approximately $10.2 million.

The Company has reserved shares of common stock for the exercise of warrants, the issuance of options granted under the Company’s stock option plan and its stock purchase plan as follows:


	December 31,	December 31,
	2014	2013
Warrants	2,197,883	3,021,302
Stock award plans	1,297,389	1,032,462
Employee Stock Purchase Plan	250,000	-
	3,745,272	4,053,764

Stock Award Plans

The Company has various stock plans that permit the Company to provide incentives to employees and directors of the Company in the form of equity compensation. In August 2012, the Board of Directors adopted a stock incentive plan (the 2012 Stock Incentive Plan) which was subsequently approved by the Company’s stockholders. This plan replaces the 2002 Stock Incentive Plan which expired on March 25, 2012.

The 2012 Stock Incentive Plan allows for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, restricted shares and restricted share units to employees, directors, and consultants. Options granted under the 2012 Stock Incentive Plan expire no later than ten years from the date of grant. The exercise price of each incentive stock option shall not be less than 100% of the fair value of the stock subject to the option on the date the option is granted. The vesting provisions of individual options may vary, but incentive stock options generally vest 25% on the first anniversary of each grant and 1/48 per month over the next three years. Stock appreciation rights are rights to acquire a calculated number of shares of the Company’s common stock upon exercise of the rights. The number of shares to be issued is calculated as the difference between the exercise price of the right and the aggregate market value of the underlying shares on the exercise date divided by the market value as of the exercise date. Stock appreciation rights granted under the 2012 Stock Incentive Plan generally vest 25% on the first anniversary of such grant and 1/48 per month over the next three years and expire no later than ten years from the date of grant. The Company generally issues new shares upon the exercise of stock options and stock appreciation rights.

Restricted share grants are either time-based or performance-based. Time-based restricted shares generally cliff vest three years after grant. Performance-based restricted shares vest upon the achievement of performance objectives which are determined by the Company’s Board of Directors.

Restricted stock unit grants are time-based and generally vest over a period of four years. Options granted to non-employee directors expire no later than ten years from the date of grant. The exercise price of options to non-employee directors shall not be less than 100% of the fair value of the stock subject to the option on the date the option is granted. Initial grants of options to new directors generally vest over a two year period. Annual grants to directors generally vest upon the earlier of one year or the next stockholder meeting.

A summary of the option and stock appreciation rights activity for the year ended December 31, 2014 is as follows:


	Number of Options/SARs	Range of Exercise Price	Weighted Average Exercise Price per Share

Outstanding, December 31, 2013	188,947	$1.69 - $116.40	$ 48.38
Granted	336,850	$4.04 - $5.19	$ 4.04
Exercised	-	-	-
Forfeited	(38,651)	$1.69 - $116.40	$ 54.80
Outstanding, December 31, 2014	487,146	$1.69 - $116.40	$ 17.21

As of December 31, 2014, the weighted average remaining contractual life of the options and stock appreciation rights outstanding was 7.50 years. Of the 487,146 options and stock appreciation rights that were outstanding as of December 31, 2014, 148,370 were vested and exercisable with a weighted average exercise price of $46.83 per share and a weighted average remaining term of 3.58 years.

A summary of the options and stock appreciation rights outstanding by range of exercise price is as follows:


	Year Ended December 31, 2014
							Number of		Weighted
			Weighted		Weighted		Options		Average Exercise
	Options		Average		Average		Currently		Price Per Vested
Range of Exercise Prices	Outstanding		Remaining Life		Exercise Price		Exercisable		Share
$0.00 - $10.00		338,031		9.23 years	$	4.06		1,389	$	6.49
$30.01 - $40.00		81,455		4.92 years	$	35.15		79,321	$	35.15
$40.01 - $50.00		36,660		1.76 years	$	44.13		36,660	$	44.13
$50.01 - $60.00		12,250		3.41 years	$	54.90		12,250	$	54.90
$70.01 - $80.00		4,500		0.46 years	$	78.00		4,500	$	78.00
$90.01+		14,250		1.76 years	$	105.94		14,250	$	105.94
		487,146		7.50 years	$	17.21		148,370	$	46.83

The intrinsic value of options and stock appreciation rights is calculated as the difference between the exercise price of the underlying awards and the quoted price of the Company’s common stock for the options and stock appreciation rights that were in-the-money at December 31, 2014. The intrinsic value of the options and stock appreciation rights outstanding at December 31, 2014 and the intrinsic value of fully vested options and stock appreciation rights outstanding at December 31, 2014 were zero based on a closing share price of $1.48 on December 31, 2014. No options or stock appreciation rights were exercised under the Company’s stock option plans during the year ended December 31, 2014. The weighted average grant date fair value of options and stock appreciation rights granted during the year ended December 31, 2014 was $4.04 per share.

During the year ended December 31, 2014, no options or stock appreciation rights were exercised. The Company realized less than $0.1 million and $0 from the exercise of stock options and stock appreciation rights during 2013 and 2012, respectively.

A summary of the restricted share grant activity for the year ended December 31, 2014 is as follows:


	Number of Shares	Weighted Average Grant Date Fair Value per Share

Outstanding, December 31, 2013	6,600	$ 35.20
Granted	-	-
Vested	(6,600)	($35.20)
Forfeited	-	-
Outstanding, December 31, 2014	-	-

There were no restricted shares outstanding as of December 31, 2014. During the year ended December 31, 2013, the Company determined that it was not probable that the performance conditions related to certain of its outstanding restricted share awards would be achieved and accordingly reversed the related shares outstanding.

A summary of the restricted stock unit activity for the year ended December 31, 2014 is as follows:


	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value per Unit

Outstanding, December 31, 2013	588,759	$ 2.05
Granted	410,400	$ 3.91
Vested	(291,148)	$ 2.00
Forfeited	(10,260)	$ 3.65
Outstanding, December 31, 2014	697,751	$ 3.14

The intrinsic value of restricted shares and restricted stock units outstanding at December 31, 2014 was zero and $1.0 million, respectively, based on a closing share price of $1.48 as of December 31, 2014. During the year ended December 31, 2014, the aggregate intrinsic value of restricted shares and restricted stock units vested was less than $0.1 and $1.1 million, respectively, determined at the date of vesting.

During the fourth quarter of 2014, the Company made an adjustment to its forfeiture rate based on historical information, which resulted in an increase to share-based compensation of approximately $0.1 million for the year ended December 31, 2014.

As of December 31, 2014, the total compensation cost related to options, stock appreciation rights and non-vested stock granted to employees under the Company’s stock award plans but not yet recognized was approximately $1.6 million, net of estimated forfeitures of approximately $1.5 million. This cost will be amortized over a weighted average period of approximately two years on a straight-line basis over the underlying estimated service periods and will be adjusted for subsequent changes in estimated forfeitures.

2009 Employee Stock Purchase Plan

In 2009, the Company adopted its 2009 Employee Stock Purchase Plan (“ESPP”). In June 2014, our shareholders approved a proposal to amend the ESPP to increase the number of shares authorized for issuance under the ESPP by 250,000 shares. Eligible employees have the opportunity to participate in a new purchase period every 3 months. Under the terms of the plan, employees can purchase up to 15% of their compensation of the Company’s common stock, subject to an annual maximum of $25,000, at 95% of the fair market value of the stock at the end of the purchase period, subject to certain plan limitations. As of December 31, 2014, there were 250,000 remaining shares available for issuance under the Employee Stock Purchase Plan.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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-Paragraph d
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
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Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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+ Details

Fair Value Measurements

12 Months Ended

Dec. 31, 2014

Fair Value Measurements [Abstract]

Fair Value Measurements

12. Fair Value Measurements

The Company measures certain financial assets and liabilities at fair value on a recurring basis, including cash equivalents and warrants. General accounting principles for fair value measurement established a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (“Level 1”) and the lowest priority to unobservable inputs (“Level 3”). The three levels of the fair value hierarchy are described below:

Level 1: Values are based on unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

Level 2: Values are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, or other model-based valuation techniques for which all significant assumptions are observable in the market.

Level 3: Values are generated from model-based techniques that use significant assumptions not observable in the market.

The following table sets forth the Company’s assets and liabilities measured at fair value on a recurring basis by level within the fair value hierarchy. As required by the Fair Value Measurements and Disclosures topic of the Accounting Standards Codification, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.


	Fair Value Measurement Using
	Total		Quoted Prices in Active Markets for Identical Instruments (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Assets at December 31, 2014:
Cash equivalents	$	5,361,053	5,361,053	—	—
Total assets at fair value	$	5,361,053	5,361,053	—	—
Liabilities at December 31, 2014:
Warrants issued May 10, 2012	$	728,712	—	—	728,712
Warrants issued August 2013		1,405,475			1,405,475
Total liabilities at fair value:	$	2,134,187	—	—	2,134,187
Assets at December 31, 2013:
Cash equivalents	$	11,995,481	11,995,481	—	—
Total assets at fair value	$	11,995,481	11,995,481	—	—
Liabilities at December 31, 2013:
Warrants issued December 29, 2008	$	16,863	—	—	16,863
Warrants issued May 10, 2012		1,915,753	—	—	1,915,753
Warrants issued August 2013		3,712,010			3,712,010
Total liabilities at fair value:	$	5,644,626	—	—	5,644,626

Level 1

The Company’s financial assets consist of cash equivalents invested in money market funds in the amount of $5,361,053 and $11,995,481 at December 31, 2014 and December 31, 2013, respectively. These assets are classified as Level 1 as described above and total interest income recorded for these investments was insignificant during both the years ended December 31, 2014 and December 31, 2013. There were no transfers in or out of Level 1 during the year ended December 31, 2014.

Level 2

The Company does not have any financial assets or liabilities classified as Level 2.

Level 3

In conjunction with its December 29, 2008 registered direct offering, the Company issued warrants to purchase 179,241 shares of the Company’s common stock that contained a provision that required a reduction of the exercise price if certain equity events occurred. Under the provisions of general accounting principles for derivatives and hedging activities and determining whether an instrument (or embedded feature) is indexed to an entity’s own stock, such a reset provision does not meet the exemptions for equity classification and as such, the Company accounted for these warrants as derivative instruments. The calculated fair value of the warrants was classified as a liability and was periodically remeasured with any changes in value recognized in “Other income (expense)” in the Statement of Operations. General accounting principles for determining whether an instrument (or embedded feature) is indexed to an entity’s own stock became effective for the Company as of January 1, 2009. Accordingly, the fair value of the warrants as of that date was reclassified from stockholders’ equity into current liabilities. This tranche of warrants issued in conjunction with the December 2008 registered direct offering were expired as of December 31, 2014.

The warrants issued in conjunction with the May 2012 Stock and Warrant Purchase Agreement (“PIPE warrants”) described in Note 11 are considered a liability. Due to the provisions included in the warrant agreements, the PIPE warrants do not meet the exemptions for equity classification and as such, the Company accounts for these PIPE warrants as derivative instruments. The PIPE warrants are periodically remeasured with any changes in value recognized in “Other income (expense)” in the Statement of Operations.

A Monte-Carlo simulation was used to value the warrants upon issuance on May 10, 2012 using the following assumptions: 1) volatility of 80%; 2) risk-free interest rate of 1.035%; and 3) a closing stock price of $3.413.

The remaining PIPE warrants expire in May 2018 and were revalued as of December 31, 2014 using the following assumptions: 1) volatility of 165.27%; 2) risk-free interest rate of 1.10%; and 3) a closing stock price of $1.48.

The Exchange warrants issued on August 7, 2013 are also considered a liability. Due to the provisions included in the warrant agreements, the warrants do not meet the exemptions for equity classification and as such, the Company accounts for these warrants as derivative instruments. These warrants were initially valued using the following assumptions: 1) volatility of 111%; 2) risk-free interest rate of 1.46%; and 3) a closing stock price of $8.69.

The remaining Exchange warrants expire in November 2018 and were revalued as of December 31, 2014 using the following assumptions: 1) volatility of 158.08%; 2) risk-free interest rate of 1.10%; and 3) a closing stock price of $1.48.

The significant unobservable input used in the fair value measurement of the Company’s warrants is volatility. Significant increases (decreases) in the volatility in isolation would result in a significantly higher (lower) asset and liability fair value measurements.

The following table sets forth a summary of changes in the fair value of the Company’s Level 3 financial asset and liabilities for the year ended December 31, 2014:


	Warrants issued December 29, 2008	Warrants issued May 2012	Warrants issued August 2013	Total Liabilities
Balance at beginning of period	$ 16,863	$ 1,915,753	$ 3,712,010	$ 5,644,626
Issues	-	-	-	-
Settlements	-	-	-	-
Revaluation	(16,863)	(1,187,041)	(2,306,535)	(3,510,439)
Balance at end of period	$ -	$ 728,712	$ 1,405,475	$ 2,134,187

The Company currently does not have derivative instruments to manage its exposure to currency fluctuations or other business risks. The Company evaluates all of its financial instruments to determine if such instruments are derivatives or contain features that qualify as embedded derivatives. All derivative financial instruments are recognized in the balance sheet at fair value.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Income Taxes

12 Months Ended

Dec. 31, 2014

Income Taxes [Abstract]

Income Taxes

13. Income Taxes

The provision for income taxes consists of the following:


	Year Ended December 31,
	2014		2013		2012
Deferred:
Federal	$	(894,506)	$	(93,078,760)	$	4,586,506
State and local		(1,582,500)		(6,128,198)		493,946
		(2,477,006)		(99,206,958)		5,080,452
Valuation allowance		2,477,006		99,206,958		(5,080,452)
	$	—	$	—	$	—

The provision for income taxes varies from the amount determined by applying the U.S. federal statutory rate to income before income taxes as a result of the following:


	Year Ended December 31,
	2014		2013		2012
U.S. statutory income tax rate	34.0	%	34.0	%	34	%
State and local taxes, net of federal tax benefit	2.4	%	0.3	%	5.7	%
Permanent differences between book and tax	17.1	%	(26.9)	%	22.1	%
Deferred tax adjustments	(71.9)	%	(151.7)	%	(8.2)	%
State rate adjustments	(29.2)	%	—	%	—	%
Valuation allowance	47.6	%	144.3	%	(53.6)	%
Effective income tax rate	—	%	—	%	—	%

Included in permanent differences between book and tax in the above table are the impacts of the non-deductible mark-to-market activity associated with convertible debt and warrants as well as permanent differences such as nondeductible meals and entertainment. The deferred tax adjustment for the year ended December 31, 2014 is a write-off of a portion of the deferred tax asset related to stock compensation. The deferred tax adjustment for the year ended December 31, 2013 represents the impact of the Section 382 limitation discussed below. The deferred tax adjustment for the year ended December 31, 2012 is a write-off of a portion of the deferred tax asset related to stock compensation and net operating losses due to expiration. The state rate adjustments are a result of changes in apportionment and various state rate law changes.

The components of the deferred tax asset are as follows:


	December 31,
	2014		2013
Current accruals	$	1,416,823	$	1,998,086
Depreciation and amortization		2,302,685		2,566,979
Deferred compensation		1,589,935		5,421,688
Net operating loss carryovers		30,246,136		28,045,831
Deferred tax assets		35,555,579		38,032,584
Valuation allowance		(35,555,579)		(38,032,584)
Net deferred tax assets	$	—	$	—

Under Section 382 and 383 of the Internal Revenue Code of 1986, as amended, or the “Code”, if a corporation undergoes an “ownership change,” the corporation’s ability to use its pre-change net operating loss carryforwards and other pre-change tax attributes, such as research tax credits, to offset its post-change income may be limited. In general, an “ownership change” will occur if there is a cumulative change in our ownership by “5-percent shareholders” that exceeds 50 percentage points over a rolling three-year period. Similar rules may apply under state tax laws. Following significant ownership changes during 2013, the Company initiated a review of the availability of its U.S. net operating loss carryforwards. As a result of this review, it was determined that a large portion of the Company’s net operating loss carryovers would expire unused due to the limitation under IRC Section 382. The Company reduced the net operating loss carryover and corresponding valuation allowance as a result of these limitations as reflected in the net operating loss carryovers in the table above. The remaining net operating loss carryforwards following the ownership change have been assigned a full valuation allowance against all deferred tax assets.

In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. The Company considers projected future taxable income and tax planning strategies in making this assessment. Based upon the level of historical taxable losses, and projections for future periods over which the deferred tax assets are deductible, the Company determined that a 100% valuation allowance of deferred tax assets was appropriate. The valuation allowance for deferred tax assets includes amounts for which subsequently recognized tax benefits will be applied directly to contributed capital.

Based on the results of the review, discussed above, as of December 31, 2014, we had gross federal net operating loss carryforwards of approximately $85.0 million. The federal net operating loss carryforwards will expire between 2018 and 2034. As of December 31, 2014, we had state net operating loss deferred tax assets of approximately $1.4 million which will expire at various dates between 2015 and 2034 if not utilized.

The Company files income tax returns in the U.S. federal jurisdiction and various state and local jurisdictions. As the Company has a federal net operating loss carryforward from the year ended December 31, 1994 forward, all tax years from 1994 forward are subject to examination. As states have varying carryforward periods, and the Company has recently entered into additional states, the states are generally subject to examination for the previous 10 years or less.

The Company recognizes interest accrued, if any, net of tax and penalties, related to unrecognized tax benefits as components of income tax provision as applicable. As of December 31, 2014 accrued interest and penalties were less than $0.1 million.

At December 31, 2014 and 2013, the Company had approximately $0.2 million in reserves for uncertain tax positions.

Net Loss Per Share

12 Months Ended

Dec. 31, 2014

Net loss per common share:

Net Loss Per Share

14. Net Loss per Share

The following is a reconciliation of the numerator (net loss) and the denominator (number of shares) used in the basic and diluted earnings per share calculations:


	2014		2013		2012
Numerator:
Numerator for basic EPS	$	(5,202,441)	$	(68,757,589)	$	(9,238,427)
Numerator for diluted EPS	$	(5,202,441)	$	(68,757,589)	$	(9,238,427)
Denominator:
Denominator for basic EPS—weighted average shares		19,945,038		11,554,566		6,944,928
Denominator for diluted EPS		19,945,038		11,554,566		6,944,928
Basic EPS	$	(0.26)	$	(5.95)	$	(1.33)
Diluted EPS	$	(0.26)	$	(5.95)	$	(1.33)

The following table sets forth the number of common shares that were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive as follows:


	December 31,
		2014	2013	2012
Shares outstanding
Restricted shares		-	6,600	68,543
Shares issuable upon vesting/exercise of:
Options to purchase common stock		487,146	188,947	373,899
Restricted stock units		697,751	588,759	529,312
Warrants		2,197,883	3,021,302	6,099,476
		3,382,780	3,805,608	7,071,230

Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Dec. 31, 2014
Empoyee Benefit Plan [Abstract]
Employee Benefit Plan	15. Employee Benefit Plan The Company offers employees the opportunity to participate in a 401(k) plan. Through September 30, 2011, the Company matched employee contributions dollar for dollar up to 3% of the employee’s salary during the employee’s period of participation. Such employer contributions are discretionary under the 401(k) plan. As of October 1, 2011, the Company suspended all matching contributions indefinitely. The Company had no expenses related to the employee contribution matching program for the year ended December 31, 2014 and December 31, 2013. For the year ended December 31, 2012, the Company expensed $8,595 related to the plan.

Product Warranty Provisions

12 Months Ended

Dec. 31, 2014

Product Warranty Provisions [Abstract]

Product Warranty Provisions

16. Product Warranty Provisions

The Company’s standard policy is to warrant all Niobe, Odyssey and Vdrive systems against defects in material or workmanship for one year following installation. The Company’s estimate of costs to service the warranty obligations is based on historical experience and current product performance trends. A regular review of warranty obligations is performed to determine the adequacy of the reserve and adjustments are made to the estimated warranty liability as appropriate.

Accrued warranty, which is included in other accrued liabilities, consists of the following:


	December 31, 2014		December 31, 2013
Warranty accrual, beginning of the fiscal period	$	501,212	$	653,473
Accrual adjustment for product warranty		84,402		84,562
Payments made		(221,066)		(236,823)
Warranty accrual, end of the fiscal period	$	364,548	$	501,212

Commitments And Contingencies	12 Months Ended
Commitments And Contingencies	Dec. 31, 2014
Commitments And Contingencies [Abstract]
Commitments And Contingencies	17. Commitments and Contingencies The Company at times becomes a party to claims in the ordinary course of business. Management believes that the ultimate resolution of pending or threatened proceedings will not have a material effect on the financial position, results of operations or liquidity of the Company. In 2012, the Company entered into a letter of credit to support a commitment in the amount of approximately $0.1 million. This letter of credit is valid through 2015.

Segment Information

12 Months Ended

Dec. 31, 2014

Segment Information [Abstract]

Segment Information

18. Segment Information

The Company considers reporting segments in accordance with general accounting principles for disclosures about segments of an enterprise and related information. The Company’s system and disposable devices are developed and marketed to a broad base of hospitals in the United States and internationally. The Company considers all such sales to be part of a single operating segment.


	Year Ended December 31,
	2014		2013		2012
United States	$	21,626,788	$	24,063,932	$	27,034,200
International		13,384,488		13,967,149		19,528,234
Total	$	35,011,276	$	38,031,081	$	46,562,434

All of the Company’s long-lived assets are located in the United States. Revenues are attributed to countries based on the location of the customer.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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+ Details

Quarterly Data

12 Months Ended

Dec. 31, 2014

Quarterly Data [Abstract]

Quarterly Data

19. Quarterly Data (Unaudited)

The following tabulations reflect the unaudited quarterly results of operations for the years ended December 31, 2014 and 2013:



							Basic Net		Diluted Net
					Net Income		Income (Loss)		Income (Loss)
	Net Sales		Gross Profit		(Loss)		Per Share		Per Share
2014
First quarter	$	8,354,670	$	6,735,584	$	(4,139,848)	$	(0.21)	$	(0.21)
Second quarter		8,047,537		6,062,775		(1,941,479)		(0.10)		(0.10)
Third quarter		8,854,101		6,516,169		22,670		0.00		0.00
Fourth quarter		9,754,968		7,473,368		856,216		0.04		0.04
2013
First quarter	$	8,408,204	$	6,215,559	$	(4,920,147)	$	(0.61)	$	(0.61)
Second quarter		9,733,407		7,261,519		(3,006,792)		(0.37)		(0.37)
Third quarter		10,821,444		7,321,820		(56,868,442)		(4.49)		(4.49)
Fourth quarter		9,068,026		6,230,882		(3,962,208)		(0.23)		(0.23)

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events	20. Subsequent Events None.

Valuation And Qualifying Accounts

12 Months Ended

Dec. 31, 2014

Valuation And Qualifying Accounts [Abstract]

Valuation And Qualifying Accounts

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

FOR THE YEARS ENDED DECEMBER 31, 2014, 2013, AND 2012


			Additions
	Balance at		Charged to
	Beginning of		Cost and				Balance at the
	Year		Expenses		Deductions		End of Year
Allowance for doubtful accounts and returns:
Year ended December 31, 2014	$	383,077	$	48,742	$	(300,355)	$	131,464
Year ended December 31, 2013	$	640,183	$	65,781	$	(322,887)	$	383,077
Year ended December 31, 2012	$	667,529	$	763	$	(28,109)	$	640,183

Allowance for inventories valuation:
Year ended December 31, 2014	$	80,213	$	6,970	$	(27,549)	$	59,634
Year ended December 31, 2013	$	72,639	$	179,803	$	(172,229)	$	80,213
Year ended December 31, 2012	$	151,157	$	122,783	$	(201,301)	$	72,639

Summary Of Significant Accounting Policies (Policy)	12 Months Ended
Summary Of Significant Accounting Policies (Policy)	Dec. 31, 2014
Summary Of Significant Accounting Policies [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers all short-term investments purchased with original maturities of three months or less to be cash equivalents. The Company places its cash with high-credit-quality financial institutions and invests primarily in money market accounts. In 2012, we entered into a letter of credit to support a commitment in the amount of approximately $0.1 million. This letter of credit is valid through 2015. No cash was restricted at December 31, 2014 or 2013.
Accounts Receivable and Allowance for Uncollectible Accounts	Accounts Receivable and Allowance for Uncollectible Accounts Accounts receivable primarily include amounts due from hospitals and distributors for acquisition of magnetic systems, associated disposable device sales and service contracts. Credit is granted on a limited basis, with balances due generally within 30 days of billing. The provision for bad debts is based upon management’s assessment of historical and expected net collections considering business and economic conditions and other collection indicators.
Financial Instruments	Financial Instruments Financial instruments consist of cash and cash equivalents, short-term investments, accounts receivable, accounts payable and debt. The carrying value of such amounts reported at the applicable balance sheet dates approximates fair value. See Note 9 for disclosure of the fair value of debt. The Company measures certain financial assets and liabilities at fair value on a recurring basis, including warrants. General accounting principles for fair value measurement established a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (“Level 1”) and the lowest priority to unobservable inputs (“Level 3”). See Note 12 for disclosure of fair value measurements.
Inventory	Inventory The Company values its inventory at the lower of cost, as determined using the first-in, first-out (FIFO) method, or market. The Company periodically reviews its physical inventory for obsolete items and provides a reserve upon identification of potential obsolete items.
Property and Equipment	Property and Equipment Property and equipment consist primarily of leasehold improvements, computer, office, and research and demonstration equipment, and equipment held for lease and are stated at cost. Depreciation is calculated using the straight-line method over the estimated useful lives or life of the base lease term, ranging from three to ten years.
Long-Lived Assets	Long-Lived Assets If facts and circumstances suggest that a long-lived asset may be impaired, the carrying value is reviewed. If this review indicates that the carrying value of the asset will not be recovered, as determined based on projected undiscounted cash flows related to the asset over its remaining life, the carrying value of the asset is reduced to its estimated fair value.
Intangible Assets	Intangible Assets Intangible assets consist of purchased technology and intellectual property rights valued at cost on the acquisition date and amortized over their estimated useful lives of 10-15 years. If facts and circumstances suggest that an intangible asset may be impaired, the carrying value is reviewed. If this review indicates that the carrying value of the asset will not be recovered, as determined based on projected undiscounted cash flows related to the asset over its remaining life, the carrying value of the asset is reduced to its estimated fair value.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and loss during the reporting period. Actual results could differ from those estimates.
Revenue And Costs Of Revenue	Revenue and Costs of Revenue The Company adopted Accounting Standards Update 2009-13, Multiple-Deliverable Revenue Arrangements (“ASU 2009-13”) in the fourth quarter of 2009, effective as of January 1, 2009. ASU 2009-13 permits management to estimate the selling price of undelivered components of a bundled sale for which it is unable to establish vendor-specific objective evidence (“VSOE”) or third-party evidence (“TPE”). This requires management to record revenue for certain elements of a transaction even though it might not have delivered other elements of the transaction, for which it was unable to meet the requirements for establishing VSOE or TPE. The Company believes that the guidance significantly improves the reporting of these types of transactions to more closely reflect the underlying economic circumstances. This guidance also prohibits the use of the residual method for allocating revenue to the various elements of a transaction and requires that the revenue be allocated proportionally based on the relative estimated selling prices. Under our revenue recognition policy, a portion of revenue for Niobe systems, Vdrive systems and certain Odyssey systems is recognized upon delivery, provided that title has passed, there are no uncertainties regarding acceptance, persuasive evidence of an arrangement exists, the sales price is fixed and determinable, and collection of the related receivable is reasonably assured. Revenue is recognized for other types of Odyssey systems upon completion of installation, since there are no qualified third party installers. When installation is the responsibility of the customer, revenue from system sales is recognized upon shipment since these arrangements do not include an installation element or right of return privileges. The Company does not recognize revenue in situations in which inventory remains at a Stereotaxis warehouse or in situations in which title and risk of loss have not transferred to the customer. Amounts collected prior to satisfying the above revenue recognition criteria are reflected as deferred revenue. Revenue from services and license fees, whether sold individually or as a separate unit of accounting in a multiple-deliverable arrangement, is deferred and amortized over the service or license fee period, which is typically one year. Revenue from services is derived primarily from the sale of annual product maintenance plans. We recognize revenue from disposable device sales or accessories upon shipment and establish an appropriate reserve for returns. The return reserve, which is applicable only to disposable devices, is estimated based on historical experience which is periodically reviewed and updated as necessary. In the past, changes in estimate have had only a de minimus effect on revenue recognized in the period. We believe that the estimate is not likely to change significantly in the future. Costs of systems revenue include direct product costs, installation labor and other costs, estimated warranty costs, and initial training and product maintenance costs. These costs are recorded at the time of sale. Costs of disposable revenue include direct product costs and estimated warranty costs and are recorded at the time of sale. Cost of revenue from services and license fees are recorded when incurred.
Research and Development	Research and Development Costs Internal research and development costs are expensed in the period incurred. Amounts receivable from strategic alliances under research reimbursement agreements are recorded as a contra-research and development expense in the period reimbursable costs are incurred. There were no material receivables at December 31, 2014 or 2013 under these types of agreements. Advance receipts or other unearned reimbursements are included in accrued liabilities on the accompanying balance sheet until earned.
Share-Based Compensation	Share-Based Compensation Stock options or stock appreciation rights issued to certain non-employees are recorded at their fair value as determined in accordance with general accounting principles for share-based payments and accounting for equity instruments that are issued to other than employees for acquiring, or in conjunction with selling, goods or services, and recognized over the service period. Deferred compensation for options granted to non-employees is remeasured on a quarterly basis through the vesting or forfeiture date. The Company utilized the Black-Scholes valuation model to determine the fair value of share-based payments at the date of previously issued grant using risk-free interest rate based on the Treasury yield on the date of the grant and expected volatility based on the Company’s historical volatility over the expected term of the option. The resulting compensation expense is recognized over the requisite service period, generally one to four years. Compensation expense is recognized only for those awards expected to vest, with forfeitures estimated based on the Company’s historical experience and future expectations. Restricted shares and units granted to employees are valued at the fair market value at the date of grant. The Company amortizes the amount to expense over the service period on a straight-line basis for those shares with graded vesting. If the shares are subject to performance objectives, the resulting compensation expense is amortized over the anticipated vesting period and is subject to adjustment based on the actual achievement of objectives. Shares purchased by employees under the 2004 Employee Stock Purchase Plan were considered to be compensatory and were accounted for in accordance with general accounting principles for share-based payments. Shares purchased by employees under the 2009 Employee Stock Purchase Plan were considered to be non-compensatory.
Net Earnings (Loss) Per Common Share	Net Earnings (Loss) per Common Share On July 10, 2012, the Company effected a one-for-ten reverse stock split of the Company’s common stock. The net loss per common share, shares outstanding, and weighted average shares outstanding reported in the financial statements and notes to the financial statements for the periods ending December 31, 2014, 2013, and 2012 are presented on a post-split basis. See Note 11 for additional discussion of the reverse stock split. Basic earnings (loss) per common share are computed by dividing the net loss for the period by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share are computed by dividing the loss for the period by the weighted average number of common and common equivalent shares outstanding during the period. In addition, the application of the two-class method of computing earnings per share under general accounting principles for participating securities is not applicable because the Company’s unearned restricted shares do not contractually participate in its losses. The Company did not include any portion of unearned restricted shares, outstanding options, stock appreciation rights or warrants in the calculation of diluted loss per common share because all such securities are anti-dilutive for all periods presented. The application of the two-class method of computing earnings per share under general accounting principles for participating securities is not applicable during these periods because those securities do not contractually participate in its losses. As of December 31, 2014, the Company had 487,146 shares of common stock issuable upon the exercise of outstanding options and stock appreciation rights at a weighted average exercise price of $17.21 per share and 2,197,883 shares of common stock issuable upon the exercise of outstanding warrants at a weighted average exercise price of $6.12 per share. The Company had no unearned restricted shares outstanding for the period ended December 31, 2014.
Income Tax	Income Taxes In accordance with general accounting principles for income taxes, a deferred income tax asset or liability is determined based on the difference between the financial statement and tax basis of assets and liabilities as measured by the enacted tax rates that will be in effect when these differences reverse. The Company provides a valuation allowance against net deferred income tax assets unless, based upon available evidence, it is more likely than not the deferred income tax assets will be realized.
Product Warranty Provisions	Product Warranty Provisions The Company’s standard policy is to warrant all systems against defects in material or workmanship for one year following installation. The Company’s estimate of costs to service the warranty obligations is based on historical experience and current product performance trends. A regular review of warranty obligations is performed to determine the adequacy of the reserve and adjustments are made to the estimated warranty liability (included in other accrued liabilities) as appropriate.
Patent Costs	Patent Costs Costs related to filing and pursuing patent applications are expensed as incurred, as recoverability of such expenditures is uncertain.
Concentrations of Risk	Concentrations of Risk The majority of the Company’s cash, cash equivalents and investments are deposited with one major financial institution in the U.S. Deposits in this institution exceed the amount of insurance provided on such deposits. Biosense Webster Inc. accounted for $4,651,490, $3,902,178, and $3,447,386, or 13%, 10% and 7%, of total net revenue for the years ended December 31, 2014, 2013, and 2012, respectively. No other single customer accounted for more than 10% of total revenue for the year ended December 31, 2014.
Reclassifications	Reclassifications Common stock and additional paid-in capital in the prior year’s financial statements have been reclassified to reflect the one-for-ten reverse stock split effected on July 10, 2012. Refer to Note 11 for additional discussion of the reverse stock split.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU” or “Update”) No. 2014-15, to communicate amendments to FASB Account Standards Codification Subtopic 205-40, “Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern.” The ASU requires management to evaluate relevant conditions, events and certain management plans that are known or reasonably knowable as of the evaluation date when determining whether substantial doubt about an entity’s ability to continue as a going concern exists. Management will be required to make this evaluation for both annual and interim reporting periods. Management will have to make certain disclosures if it concludes that substantial doubt exists or when it plans to alleviate substantial doubt about the entity’s ability to continue as a going concern. The standard is effective for annual periods ending after December 15, 2016 and for interim reporting periods starting in the first quarter of 2017. Early adoption is permitted. We are currently evaluating the impact of adopting this accounting standard update on our financial statement disclosures and have not concluded on an adoption method. In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers," which converges the FASB's and the International Accounting Standards Board's current standards on revenue recognition. The standard provides companies with a single model to use in accounting for revenue arising from contracts with customers and supersedes current revenue guidance. The standard is effective for annual and interim periods beginning after December 15, 2016. Early adoption is not permitted. The standard permits companies to either apply the adoption to all periods presented, or apply the requirements in the year of adoption through a cumulative adjustment. We are currently evaluating the impact of adopting this accounting standard update on our financial statements and disclosures and have not concluded on an adoption method. In February 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU” or “Update”) 2013-02, “Comprehensive Income: Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” which adds new disclosure requirements for items reclassified out of accumulated other comprehensive income (“AOCI”). The update requires that the Company present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of AOCI based on its source and the income statement line items affected by the reclassification. The guidance is effective for interim and annual reporting periods beginning on or after December 15, 2012. As the Company has no items of other comprehensive income, the Company is not required to report accumulated other comprehensive income.

Inventory (Tables)

12 Months Ended

Dec. 31, 2014

Inventory [Abstract]

Schedule Of Inventory


	December 31, 2014	December 31, 2013

Raw materials	$ 2,746,926	$ 3,141,111
Work in process	374,236	364,779
Finished goods	3,310,375	1,453,362
Reserve for obsolescence	(59,634)	(80,213)
Total inventory	$ 6,371,903	$ 4,879,039

Prepaid Expenses And Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2014

Prepaid Expenses And Other Current Assets [Abstract]

Schedule Of Prepaid Expenses And Other Current Assets



	December 31, 2014	December 31, 2013

Prepaid expenses	$ 679,740	$ 591,305
Deferred financing costs	492,385	622,949
Deposits	311,562	692,616
Deferred cost of revenue	-	72,699
Total prepaid expenses and other assets	1,483,687	1,979,569
Less: Noncurrent prepaid expenses and other assets	(388,850)	(499,613)
Total prepaid expenses and other current assets	$ 1,094,837	$ 1,479,956

Property And Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property And Equipment [Abstract]

Schedule Of Property And Equipment


	December 31,	December 31,
	2014	2013

Equipment	$ 8,264,804	$ 8,143,000
Equipment held for lease	303,412	303,412
Leasehold improvements	2,328,381	2,328,381
	10,896,597	10,774,793
Less: Accumulated depreciation	(10,001,869)	(9,590,204)
Net property and equipment	$ 894,728	$ 1,184,589

Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2014

Accrued Liabilities [Abstract]

Schedule Of Accrued Liabilities


	December 31,	December 31,
	2014	2013

Accrued salaries, bonus, and benefits	$ 2,557,557	$ 3,565,385
Accrued rent	1,407,740	1,499,942
Accrued licenses and maintenance fees	661,766	302,384
Accrued interest	493,616	498,058
Accrued warranties	364,548	501,212
Accrued taxes	332,364	360,475
Other	102,479	351,925
Total accrued liabilities	5,920,070	7,079,381
Less: Long term accrued liabilities	(414,928)	(9,622)
Total current accrued liabilities	$ 5,505,142	$ 7,069,759

Deferred Revenue (Tables)

12 Months Ended

Dec. 31, 2014

Deferred Revenue [Abstract]

Schedule Of Deferred Revenue


	December 31,	December 31,
	2014	2013

Product shipped, revenue deferred	$ 457,348	$ 1,368,007
Customer deposits	1,065,371	421,544
Deferred service and license fees	6,111,616	6,221,283
	7,634,335	8,010,834
Less: Long-term deferred revenue	(976,165)	(491,080)
Total current deferred revenue	$ 6,658,170	$ 7,519,754

Long-Term Debt And Credit Facilities (Tables)

12 Months Ended

Dec. 31, 2014

Long-Term Debt And Credit Facilities [Abstract]

Schedule Of Long-Term Debt Outstanding


	December 31, 2014		December 31, 2013
	Carrying	Estimated	Carrying	Estimated
	Amount	Fair Value	Amount	Fair Value

Healthcare Royalty Partners debt	$ 18,388,764	$ 18,388,764	$ 18,531,211	$ 18,531,211
Less current maturities	—	—	(49,733)	(49,733)
Total long term debt	$ 18,388,764	$ 18,388,764	$ 18,481,478	$ 18,481,478

Contractual Principal Maturities Of Debt


2015	$	-
2016		-
2017		-
2018		18,388,764
2019		-
2020 and Beyond		-
	$	18,388,764

Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2014

Lease Obligations [Abstract]

Schedule Of Future Minimum Lease Payments



Year		Operating Lease
2015	$	1,584,709
2016		1,930,829
2017		1,955,243
2018		2,008,832
Total minimum lease payments	$	7,479,613

Stockholder's Equity (Tables)

12 Months Ended

Dec. 31, 2014

Stockholders' Equity [Abstract]

Summary Of Reserved Shares Of Common Stock


	December 31,	December 31,
	2014	2013
Warrants	2,197,883	3,021,302
Stock award plans	1,297,389	1,032,462
Employee Stock Purchase Plan	250,000	-
	3,745,272	4,053,764

Summary Of The Option And Stock Appreciation Rights Activity


	Number of Options/SARs	Range of Exercise Price	Weighted Average Exercise Price per Share

Outstanding, December 31, 2013	188,947	$1.69 - $116.40	$ 48.38
Granted	336,850	$4.04 - $5.19	$ 4.04
Exercised	-	-	-
Forfeited	(38,651)	$1.69 - $116.40	$ 54.80
Outstanding, December 31, 2014	487,146	$1.69 - $116.40	$ 17.21

Summary Of The Options And Stock Appreciation Rights Outstanding By Range Of Excercise Price


	Year Ended December 31, 2014
							Number of		Weighted
			Weighted		Weighted		Options		Average Exercise
	Options		Average		Average		Currently		Price Per Vested
Range of Exercise Prices	Outstanding		Remaining Life		Exercise Price		Exercisable		Share
$0.00 - $10.00		338,031		9.23 years	$	4.06		1,389	$	6.49
$30.01 - $40.00		81,455		4.92 years	$	35.15		79,321	$	35.15
$40.01 - $50.00		36,660		1.76 years	$	44.13		36,660	$	44.13
$50.01 - $60.00		12,250		3.41 years	$	54.90		12,250	$	54.90
$70.01 - $80.00		4,500		0.46 years	$	78.00		4,500	$	78.00
$90.01+		14,250		1.76 years	$	105.94		14,250	$	105.94
		487,146		7.50 years	$	17.21		148,370	$	46.83

Summary Of The Restricted Share Grant Activity


	Number of Shares	Weighted Average Grant Date Fair Value per Share

Outstanding, December 31, 2013	6,600	$ 35.20
Granted	-	-
Vested	(6,600)	($35.20)
Forfeited	-	-
Outstanding, December 31, 2014	-	-

Summary Of The Restricted Stock Unit Activity


	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value per Unit

Outstanding, December 31, 2013	588,759	$ 2.05
Granted	410,400	$ 3.91
Vested	(291,148)	$ 2.00
Forfeited	(10,260)	$ 3.65
Outstanding, December 31, 2014	697,751	$ 3.14

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Measurements [Abstract]

Assets And Liabilities Measure At Fair Value On A Recurring Basis By Level


	Fair Value Measurement Using
	Total		Quoted Prices in Active Markets for Identical Instruments (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Assets at December 31, 2014:
Cash equivalents	$	5,361,053	5,361,053	—	—
Total assets at fair value	$	5,361,053	5,361,053	—	—
Liabilities at December 31, 2014:
Warrants issued May 10, 2012	$	728,712	—	—	728,712
Warrants issued August 2013		1,405,475			1,405,475
Total liabilities at fair value:	$	2,134,187	—	—	2,134,187
Assets at December 31, 2013:
Cash equivalents	$	11,995,481	11,995,481	—	—
Total assets at fair value	$	11,995,481	11,995,481	—	—
Liabilities at December 31, 2013:
Warrants issued December 29, 2008	$	16,863	—	—	16,863
Warrants issued May 10, 2012		1,915,753	—	—	1,915,753
Warrants issued August 2013		3,712,010			3,712,010
Total liabilities at fair value:	$	5,644,626	—	—	5,644,626

Summary Of Changes In The Fair Value Of The Company's Level 3 Financial Asset And Liabilities


	Warrants issued December 29, 2008	Warrants issued May 2012	Warrants issued August 2013	Total Liabilities
Balance at beginning of period	$ 16,863	$ 1,915,753	$ 3,712,010	$ 5,644,626
Issues	-	-	-	-
Settlements	-	-	-	-
Revaluation	(16,863)	(1,187,041)	(2,306,535)	(3,510,439)
Balance at end of period	$ -	$ 728,712	$ 1,405,475	$ 2,134,187

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Taxes [Abstract]

Schedule of Components of Income Tax Provision


	Year Ended December 31,
	2014		2013		2012
Deferred:
Federal	$	(894,506)	$	(93,078,760)	$	4,586,506
State and local		(1,582,500)		(6,128,198)		493,946
		(2,477,006)		(99,206,958)		5,080,452
Valuation allowance		2,477,006		99,206,958		(5,080,452)
	$	—	$	—	$	—

Schedule of Reconciliation of Federal Income Tax Rate


	Year Ended December 31,
	2014		2013		2012
U.S. statutory income tax rate	34.0	%	34.0	%	34	%
State and local taxes, net of federal tax benefit	2.4	%	0.3	%	5.7	%
Permanent differences between book and tax	17.1	%	(26.9)	%	22.1	%
Deferred tax adjustments	(71.9)	%	(151.7)	%	(8.2)	%
State rate adjustments	(29.2)	%	—	%	—	%
Valuation allowance	47.6	%	144.3	%	(53.6)	%
Effective income tax rate	—	%	—	%	—	%

Schedule of Deferred Tax Assets


	December 31,
	2014		2013
Current accruals	$	1,416,823	$	1,998,086
Depreciation and amortization		2,302,685		2,566,979
Deferred compensation		1,589,935		5,421,688
Net operating loss carryovers		30,246,136		28,045,831
Deferred tax assets		35,555,579		38,032,584
Valuation allowance		(35,555,579)		(38,032,584)
Net deferred tax assets	$	—	$	—

Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Net loss per common share:

Computation Of Basic And Diluted EPS


	2014		2013		2012
Numerator:
Numerator for basic EPS	$	(5,202,441)	$	(68,757,589)	$	(9,238,427)
Numerator for diluted EPS	$	(5,202,441)	$	(68,757,589)	$	(9,238,427)
Denominator:
Denominator for basic EPS—weighted average shares		19,945,038		11,554,566		6,944,928
Denominator for diluted EPS		19,945,038		11,554,566		6,944,928
Basic EPS	$	(0.26)	$	(5.95)	$	(1.33)
Diluted EPS	$	(0.26)	$	(5.95)	$	(1.33)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share


	December 31,
		2014	2013	2012
Shares outstanding
Restricted shares		-	6,600	68,543
Shares issuable upon vesting/exercise of:
Options to purchase common stock		487,146	188,947	373,899
Restricted stock units		697,751	588,759	529,312
Warrants		2,197,883	3,021,302	6,099,476
		3,382,780	3,805,608	7,071,230

Product Warranty Provisions (Tables)

12 Months Ended

Dec. 31, 2014

Product Warranty Provisions [Abstract]

Schedule Of Accrued Warranty


	December 31, 2014		December 31, 2013
Warranty accrual, beginning of the fiscal period	$	501,212	$	653,473
Accrual adjustment for product warranty		84,402		84,562
Payments made		(221,066)		(236,823)
Warranty accrual, end of the fiscal period	$	364,548	$	501,212

Segment Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Information [Abstract]

Schedule of Revenue by Geographical Areas


	Year Ended December 31,
	2014		2013		2012
United States	$	21,626,788	$	24,063,932	$	27,034,200
International		13,384,488		13,967,149		19,528,234
Total	$	35,011,276	$	38,031,081	$	46,562,434

Quarterly Data (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Data [Abstract]

Schedule of Quarterly Financial Information



							Basic Net		Diluted Net
					Net Income		Income (Loss)		Income (Loss)
	Net Sales		Gross Profit		(Loss)		Per Share		Per Share
2014
First quarter	$	8,354,670	$	6,735,584	$	(4,139,848)	$	(0.21)	$	(0.21)
Second quarter		8,047,537		6,062,775		(1,941,479)		(0.10)		(0.10)
Third quarter		8,854,101		6,516,169		22,670		0.00		0.00
Fourth quarter		9,754,968		7,473,368		856,216		0.04		0.04
2013
First quarter	$	8,408,204	$	6,215,559	$	(4,920,147)	$	(0.61)	$	(0.61)
Second quarter		9,733,407		7,261,519		(3,006,792)		(0.37)		(0.37)
Third quarter		10,821,444		7,321,820		(56,868,442)		(4.49)		(4.49)
Fourth quarter		9,068,026		6,230,882		(3,962,208)		(0.23)		(0.23)

Description Of Business (Details)	12 Months Ended
Description Of Business (Details)	Dec. 31, 2014 USD ($) item	Dec. 31, 2013 USD ($)
Description Of Business [Line Items]
Cumulative losses incurred from inception \| $	$ (458,605,903)	$ (453,403,462)
Installed base \| item	119
Scenario, Forecast [Member] \| Minimum [Member]
Description Of Business [Line Items]
Annual plan to rebalance and reduce operating expenses, percentage	15.00%
Scenario, Forecast [Member] \| Maximum [Member]
Description Of Business [Line Items]
Annual plan to rebalance and reduce operating expenses, percentage	20.00%

Summary Of Significant Accounting Policies (Narrative) (Details)		3 Months Ended								12 Months Ended
	Jul. 10, 2012	Dec. 31, 2014 USD ($) $ / shares shares	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($) $ / shares shares	Sep. 30, 2013 USD ($)	Jun. 30, 2013 USD ($)	Mar. 31, 2013 USD ($)	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2013 USD ($) $ / shares shares	Dec. 31, 2012 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Restricted cash		$ 0				$ 0				$ 0	$ 0
Reverse stock split	0.1
Stock options and stock appreciation rights \| shares		487,146				188,947				487,146	188,947
Weighted average exercise price \| $ / shares		$ 17.21				$ 48.38				$ 17.21	$ 48.38
Common stock issuable upon exercise of outstanding warrants \| shares		2,197,883				3,021,302				2,197,883	3,021,302
Weighted average exercise price of warrants or rights \| $ / shares		$ 6.12								$ 6.12
Revenues		$ 9,754,968	$ 8,854,101	$ 8,047,537	$ 8,354,670	$ 9,068,026	$ 10,821,444	$ 9,733,407	$ 8,408,204	$ 35,011,276	$ 38,031,081	$ 46,562,434
Deferred revenue, amortization period										1 year
Standard product warranty, coverage term										1 year
Research and development receivable		$ 0								$ 0
Biosense Webster Inc. [Member] \| Revenue [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenues										$ 4,651,490	$ 3,902,178	$ 3,447,386
Major customer, revenue percentage										13.00%	10.00%	7.00%
Letter of Credit [Member]
Summary Of Significant Accounting Policies [Line Items]
Maximum borrowing capacity												$ 100,000
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life										3 years
Intangible assets, useful life										10 years
Share based compensation, requisite service period										1 year
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life										10 years
Intangible assets, useful life										15 years
Share based compensation, requisite service period										4 years

Inventory (Schedule Of Inventory) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Inventory [Abstract]
Raw materials	$ 2,746,926	$ 3,141,111
Work in process	374,236	364,779
Finished goods	3,310,375	1,453,362
Reserve for obsolescence	(59,634)	(80,213)
Total inventory	$ 6,371,903	$ 4,879,039

Prepaid Expenses And Other Current Assets (Schedule Of Prepaid Expenses And Other Current Assets) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Prepaid Expenses And Other Current Assets [Abstract]
Prepaid expenses	$ 679,740	$ 591,305
Deferred financing costs	492,385	622,949
Deposits	311,562	692,616
Deferred cost of revenue		72,699
Total Prepaid Expense and other assets	1,483,687	1,979,569
Less: Noncurrent prepaid expenses and other assets	(388,850)	(499,613)
Total prepaid expenses and other current assets	$ 1,094,837	$ 1,479,956

Property And Equipment (Schedule Of Property And Equipment) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 10,896,597	$ 10,774,793
Less: Accumulated depreciation	(10,001,869)	(9,590,204)
Net property and equipment	894,728	1,184,589
Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	8,264,804	8,143,000
Equipment Held For Lease [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	303,412	303,412
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 2,328,381	$ 2,328,381

Intangible Assets (Details) - USD ($)	12 Months Ended
Intangible Assets (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Intangible Assets [Abstract]
Total intangible assets, including those subject to execution of agreement	$ 3,665,000	$ 3,665,000
Accumulated amortization	2,285,347	1,985,514
Amortization of intangible assets	299,833	$ 299,833	$ 299,833
Future Amortization Expense, Through July 2018	299,833
Future Amortization Expense, August 2018 Through May 2020	$ 166,500

Accrued Liabilities (Schedule Of Accrued Liabilities) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accrued Liabilities [Abstract]
Accrued salaries, bonus, and benefits	$ 2,557,557	$ 3,565,385
Accrued rent	1,407,740	1,499,942
Accrued license and maintenance fees	661,766	302,384
Accrued interest	493,616	498,058
Accrued warranties	364,548	501,212	$ 653,473
Accrued taxes	332,364	360,475
Other	102,479	351,925
Total accrued liabilities	5,920,070	7,079,381
Less: Long term accrued liabilities	(414,928)	(9,622)
Total current accrued liabilities	$ 5,505,142	$ 7,069,759

Deferred Revenue (Schedule Of Deferred Revenue) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 7,634,335	$ 8,010,834
Less: Long-term deferred revenue	(976,165)	(491,080)
Total current deferred revenue	6,658,170	7,519,754
Product Shipped, Revenue Deferred [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	457,348	1,368,007
Customer Deposits [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	1,065,371	421,544
Deferred Service And License Fees [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 6,111,616	$ 6,221,283

Long-Term Debt And Credit Facilities (Revolving Line Of Credit) (Narrative) (Details)	12 Months Ended
	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Warrant term	5 years
Revolving Line Of Credit [Member]
Debt Instrument [Line Items]
Debt maturity date	Mar. 31, 2015
Tangible net worth requirement	$ (21,000,000)
Line of credit facility, amount outstanding	0
Current borrowing capacity	$ 4,500,000
Minimum [Member] \| Revolving Line Of Credit [Member]
Debt Instrument [Line Items]
Liquidity ratio	1.75

Long-Term Debt And Credit Facilities (Remaining Content) (Narrative) (Details) $ / shares in Units, item in Millions			1 Months Ended				12 Months Ended
	Aug. 07, 2013 USD ($) $ / shares shares	Aug. 08, 2012 USD ($)	Jan. 31, 2013 USD ($)	May 31, 2012 USD ($) item $ / shares shares	Nov. 30, 2011 USD ($)	Dec. 31, 2010 USD ($) $ / shares shares	Dec. 31, 2013 USD ($) shares	Dec. 31, 2012 USD ($)	Dec. 31, 2014 shares	Aug. 08, 2013 shares
Debt Instrument [Line Items]
Warrants \| shares							3,021,302		2,197,883
Number of shares issued upon conversion of warrants \| shares	262,450
Amount borrowed							$ 2,546,328	$ 2,500,000
Write-off of unamortized discount							$ 5,400,000
Convert Warrants [Member]
Debt Instrument [Line Items]
Aggregate number of shares issued upon conversion \| shares	2,500,000
Proceeds from the exercise of stock warrants	$ 8,500,000
Exchange Warrants [Member]
Debt Instrument [Line Items]
Number of shares issued upon conversion of warrants \| shares										1,400,000
Aggregate number of shares issued upon conversion \| shares										800,000
Term Note [Member]
Debt Instrument [Line Items]
Warrants \| shares						11,111
Exercise price of warrants \| $ / shares						$ 36.00
Fair value of warrants issued						$ 228,332
Term loan agreement, face value						$ 10,000,000
Healthcare Royalty Partners debt [Member]
Debt Instrument [Line Items]
Amount borrowed					$ 15,000,000
Additional amount which may be borrowed					$ 5,000,000
Percentage of royalties entitled to					100.00%
Annual interest rate					16.00%
Additional amount borrowed		$ 2,500,000	$ 2,500,000
Subordinated Convertible Debentures [Member]
Debt Instrument [Line Items]
Warrants \| shares				2,500,000
Exercise price of warrants \| $ / shares				$ 3.361
Annual interest rate				8.00%
Proceeds from Convertible Debt				$ 8,500,000
Conversion price per share \| $ / shares				$ 3.361
Number of convertible shares \| item				2.5
Debt discount				$ 7,600,000
Fair value of warrants				4,100,000
Fair value of derivative liability				$ 3,500,000
Unconverted Debentures [Member]
Debt Instrument [Line Items]
Number of shares issued upon conversion of warrants \| shares	2,500,000
Aggregate number of shares issued upon conversion \| shares	2,700,000
Exercise price of warrants \| $ / shares	$ 3.361
2010 Amendment To Loan Agreement [Member] \| Term Note [Member]
Debt Instrument [Line Items]
Interest rate added to prime rate						3.50%
Principal Due 2013 [Member] \| Term Note [Member]
Debt Instrument [Line Items]
Term loan principal amount due						$ 4,000,000
Principal Due 2012 [Member] \| Term Note [Member]
Debt Instrument [Line Items]
Term loan principal amount due						4,000,000
Principal Due 2011 [Member] \| Term Note [Member]
Debt Instrument [Line Items]
Term loan principal amount due						$ 2,000,000
Post-Stock Split [Member]
Debt Instrument [Line Items]
Exercise price of warrants \| $ / shares				$ 3.361

Long-Term Debt And Credit Facilities (Schedule Of Long-Term Debt Outstanding) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Long term debt	$ 18,388,764
Total long term debt	18,388,764	$ 18,481,478
Carrying Amount [Member]
Debt Instrument [Line Items]
Less current maturities		(49,733)
Total long term debt	18,388,764	18,481,478
Estimated Fair Value [Member]
Debt Instrument [Line Items]
Less current maturities		(49,733)
Total long term debt	18,388,764	18,481,478
Healthcare Royalty Partners debt [Member] \| Carrying Amount [Member]
Debt Instrument [Line Items]
Long term debt	18,388,764	18,531,211
Healthcare Royalty Partners debt [Member] \| Estimated Fair Value [Member]
Debt Instrument [Line Items]
Long term debt	$ 18,388,764	$ 18,531,211

Long-Term Debt And Credit Facilities (Contractual Principal Maturities Of Debt) (Details)	Dec. 31, 2014 USD ($)
Maturities of Long-term Debt [Abstract]
2015
2016
2017
2018	18,388,764
2019
2020 and Beyond
Total debt, Carrying Amount	$ 18,388,764

Lease Obligations (Narrative) (Details)	3 Months Ended	12 Months Ended
Lease Obligations (Narrative) (Details)	Sep. 30, 2013 USD ($) ft²	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)
Lease Obligations [Abstract]
Rent Expense		$ 1,068,972	$ 1,925,813	$ 1,697,153
Lease renewal term		3 years
Area of leased space, terminated \| ft²	13,000
Accrued costs of rent liability	$ 515,138	$ 354,680

Lease Obligations (Schedule of Future Minimum Lease Payments) (Details)	Dec. 31, 2014 USD ($)
Lease Obligations [Abstract]
2015	$ 1,584,709
2016	1,930,829
2017	1,955,243
2018	2,008,832
Total minimum lease payments	$ 7,479,613

Stockholders' Equity (Narrative) (Details)					1 Months Ended				12 Months Ended
Stockholders' Equity (Narrative) (Details)	Aug. 13, 2013 USD ($) shares	Aug. 07, 2013 $ / shares shares	Jul. 10, 2012 shares	May 10, 2012 $ / shares	Jun. 30, 2014 shares	Nov. 27, 2013 USD ($) shares	Aug. 16, 2013 USD ($) shares	May 31, 2012 $ / shares shares	Dec. 31, 2014 USD ($) $ / shares item shares	Dec. 31, 2013 USD ($) $ / shares shares	Dec. 31, 2012 USD ($)	Dec. 31, 2009 USD ($)	Jul. 31, 2013 USD ($) $ / shares shares	Jul. 09, 2012 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Votes per share \| item									1
Dividends declared \| $									$ 0
Dividends paid \| $									0
Stock issued, value \| $									$ 2,853,673	$ 64,594,513	$ 10,411,675
Reverse stock split			0.1
Common stock authorized									300,000,000	300,000,000				100,000,000
Common stock authorized due to Amendment			300,000,000
Common stock par value \| $ / shares									$ 0.001	$ 0.001
Warrants									2,197,883	3,021,302
Net proceeds from sale of securities \| $									$ 9,100,000
Paydown of the guarantees \| $									7,000,000
Number of shares issued upon conversion of warrants		183,478
Aggregate number of shares issued upon conversion of subscription rights and warrants		262,450
Total compensation cost not yet recognized related to options, stock appreciation rights and non-vested stock granted to employees \| $									1,600,000
Estimated forfeitures \| $									$ 1,500,000
Total compensation cost not yet recognized related to options, stock appreciation rights and non-vested stock granted to employees, period of amortization, in years									2 years
Weighted average remaining life									7 years 6 months
Weighted average exercise price per vested share \| $ / shares									$ 46.83
Number of options currently exercisable									148,370
Weighted average remaining life of vested options outstanding									3 years 6 months 29 days
Closing stock price \| $ / shares				$ 3.413					$ 1.48
Proceeds from options exercised \| $									$ 0		$ 0
Restricted stock									0
Intrinsic value of restricted shares outstanding \| $									$ 0
Intrinsic value of restricted stock units outstanding \| $									1,000,000
Intrinsic value of vested restricted shares \| $									100,000
Intrinsic value of vested restricted stock units \| $									$ 1,100,000
Number of Options/SARs, Exercised									0
Weighted Average Exercise Price per Share, Granted \| $ / shares									$ 4.04
Adjustment for forfiture rate \| $									$ 100,000
Shares authorized under plan									250,000
Percentage of compensation eligible employees can use to purchase common stock, maximum												15.00%
Compensation amount eligible employees can use to purcahse common stock, maximum \| $												$ 25,000
Percentage of fair value eligible employees can purchase common stock												95.00%
Approved proposal to increase ESPP number of shares issued					250,000
Shares available under ESPP									250,000
2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, expiration term									10 years
Exercise price as percentage of fair value									100.00%
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, expiration term									10 years
Exercise price as percentage of fair value									100.00%
Initial Grant [Member] \| Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting period									2 years
Annual Grants [Member] \| Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting period									1 year
Incentive Stock Options [Member] \| 2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting period									3 years
Incentive Stock Options [Member] \| First Anniversary [Member] \| 2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting, percentage									25.00%
Incentive Stock Options [Member] \| Subsequent Monthly Vesting [Member] \| 2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting, percentage									2.0833%
Stock Appreciation Rights (SARs) [Member] \| 2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, expiration term									10 years
Option vesting period									3 years
Stock Appreciation Rights (SARs) [Member] \| First Anniversary [Member] \| 2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting, percentage									25.00%
Stock Appreciation Rights (SARs) [Member] \| Subsequent Monthly Vesting [Member] \| 2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting, percentage									2.0833%
Time Based Restricted Shares [Member] \| 2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting period									3 years
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option vesting period									4 years
Restricted stock									697,751	588,759
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock										6,600
Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued, shares						3,400,000
Stock issued, value \| $						$ 10,200,000
Pre-Stock Split [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock outstanding			78,000,000
Post-Stock Split [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock outstanding			7,800,000
Shares sold in private placement								2,170,000
Warrants sold in private placement								2,170,000
Duration period of warrants									6 years
Share price of shares sold in private placement \| $ / shares								$ 3.361
Share price of warrants sold in private placement \| $ / shares								1.25
Exercise price of warrants \| $ / shares								$ 3.361
Revolving Line Of Credit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Guarantee of credit facility by lenders \| $													$ 3,000,000
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options and stock appreciation rights outstanding \| $									$ 0
Proceeds from options exercised \| $										$ 100,000
Warrrant Exercise Price $1.98 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants													113,636
Exercise price of warrants \| $ / shares		$ 1.98											$ 1.98
Aggregate number of shares issued upon conversion of subscription rights and warrants		75,758
Warrant Exercise Price $1.55 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants													48,387
Exercise price of warrants \| $ / shares													$ 1.55
Warrant Exercise Price $5.24 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Warrants													14,313
Exercise price of warrants \| $ / shares													$ 5.24
Warrrant Exercise Price $3.361 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price of warrants \| $ / shares		$ 3.361
Aggregate number of shares issued upon conversion of subscription rights and warrants		156,204
Warrrant Exercise Price $4.10 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price of warrants \| $ / shares		$ 4.10
Aggregate number of shares issued upon conversion of subscription rights and warrants		30,488
Sanderling Ventures PIPE Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued upon conversion of warrants	308,194
Aggregate number of shares issued upon conversion of subscription rights and warrants	650,619
Proceeds from the exercise of stock warrants \| $	$ 0
Franklin Templeton PIPE Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of shares issued upon conversion of subscription rights and warrants							650,618
Proceeds from the exercise of stock warrants \| $							$ 2,186,727
Alafi Capital Company PIPE Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of shares issued upon conversion of subscription rights and warrants							261,241
Proceeds from the exercise of stock warrants \| $							$ 878,031

Stockholders' Equity (Summary Of Reserved Shares Of Common Stock) (Details) - shares	Dec. 31, 2014	Dec. 31, 2013
Stockholders' Equity [Abstract]
Warrants	2,197,883	3,021,302
Stock award plans	1,297,389	1,032,462
Employee Stock Purchase Plan	250,000
Total Reserved Shares of Common Stock	3,745,272	4,053,764

Stockholders' Equity (Summary Of The Option And Stock Appreciation Rights Activity) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options/SARs, Outstanding, December 31, 2013	188,947
Number of Options/SARs, Granted	336,850
Number of Options/SARs, Exercised	0
Number of Options/SARs, Forfeited	(38,651)
Number of Options/SARs, Outstanding, December 31, 2014	487,146	188,947
Weighted Average Exercise Price per Share, Outstanding, December 31, 2013	$ 48.38
Weighted Average Exercise Price per Share, Granted	4.04
Weighted Average Exercise Price per Share, Forfeited	54.80
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	17.21	$ 48.38
Minimum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice	1.69	1.69
Range of Exercise Price, Granted	4.04
Range of Exercise Price, Forfeited	1.69
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice	1.69	1.69
Maximum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice	116.40	116.40
Range of Exercise Price, Granted	5.19
Range of Exercise Price, Forfeited	116.40
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePrice	$ 116.40	$ 116.40

Stockholders' Equity (Summary Of The Option And Stock Appreciation Rights Outstanding) (Details)	12 Months Ended
	Dec. 31, 2014 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options/SARs, Outstanding, December 31, 2014 \| shares	487,146
Weighted average remaining life	7 years 6 months
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	$ 17.21
Number of options currently exercisable \| shares	148,370
Weighted average exercise price per vested share	$ 46.83
$0.00 - $10.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Price, Lower limit	0.00
Range of Exercise Price, Upper limit	$ 10.00
Number of Options/SARs, Outstanding, December 31, 2014 \| shares	338,031
Weighted average remaining life	9 years 2 months 23 days
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	$ 4.06
Number of options currently exercisable \| shares	1,389
Weighted average exercise price per vested share	$ 6.49
$30.01 - $40.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Price, Lower limit	30.01
Range of Exercise Price, Upper limit	$ 40.00
Number of Options/SARs, Outstanding, December 31, 2014 \| shares	81,455
Weighted average remaining life	4 years 11 months 1 day
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	$ 35.15
Number of options currently exercisable \| shares	79,321
Weighted average exercise price per vested share	$ 35.15
$40.01 - $50.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Price, Lower limit	40.01
Range of Exercise Price, Upper limit	$ 50.00
Number of Options/SARs, Outstanding, December 31, 2014 \| shares	36,660
Weighted average remaining life	1 year 9 months 4 days
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	$ 44.13
Number of options currently exercisable \| shares	36,660
Weighted average exercise price per vested share	$ 44.13
$50.01 - $60.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Price, Lower limit	50.01
Range of Exercise Price, Upper limit	$ 60.00
Number of Options/SARs, Outstanding, December 31, 2014 \| shares	12,250
Weighted average remaining life	3 years 4 months 28 days
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	$ 54.90
Number of options currently exercisable \| shares	12,250
Weighted average exercise price per vested share	$ 54.90
$70.01 - $80.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Price, Lower limit	70.01
Range of Exercise Price, Upper limit	$ 80.00
Number of Options/SARs, Outstanding, December 31, 2014 \| shares	4,500
Weighted average remaining life	5 months 16 days
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	$ 78.00
Number of options currently exercisable \| shares	4,500
Weighted average exercise price per vested share	$ 78.00
$90.01+ [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Price, Lower limit	$ 90.01
Number of Options/SARs, Outstanding, December 31, 2014 \| shares	14,250
Weighted average remaining life	1 year 9 months 4 days
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	$ 105.94
Number of options currently exercisable \| shares	14,250
Weighted average exercise price per vested share	$ 105.94

Stockholders' Equity (Summary Of The Restricted Share Grant Activity) (Details)	12 Months Ended
	Dec. 31, 2014 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, December 31, 2014	0
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, December 31, 2013	6,600
Number of Shares, Granted
Number of Shares, Vested	(6,600)
Weighted Average Grant Date Fair Value per Share/Unit, Outstanding, December 31, 2013 \| $ / shares	$ 35.20
Weighted Average Grant Date Fair Value per Share/Unit, Granted \| $ / shares
Weighted Average Grant Date Fair Value per Share/Unit, Vested \| $ / shares	$ (35.20)

Stockholders' Equity (Summary Of The Restricted Stock Unit Activity) (Details)	12 Months Ended
	Dec. 31, 2014 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, December 31, 2014	0
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, December 31, 2013	588,759
Number of Shares, Granted	410,400
Number of Shares, Vested	(291,148)
Number of Shares, Forfeited	(10,260)
Number of Shares, Outstanding, December 31, 2014	697,751
Weighted Average Grant Date Fair Value per Share/Unit, Outstanding, December 31, 2013 \| $ / shares	$ 2.05
Weighted Average Grant Date Fair Value per Share/Unit, Granted \| $ / shares	3.91
Weighted Average Grant Date Fair Value per Share/Unit, Vested \| $ / shares	2.00
Weighted Average Grant Date Fair Value per Share/Unit, Forfeited \| $ / shares	3.65
Weighted Average Grant Date Fair Value per Share/Unit, Outstanding, December 31, 2014 \| $ / shares	$ 3.14

Fair Value Measurements (Narrative) (Details) - USD ($)			12 Months Ended
Fair Value Measurements (Narrative) (Details) - USD ($)	Aug. 07, 2013	May 10, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 29, 2008
Fair Value Measurements [Line Items]
Cash equivalents invested in money market funds			$ 5,361,053	$ 11,995,481
Issued warrants to purchase shares of common stock			2,197,883	3,021,302
Volatility rate		80.00%
Risk-free interest rate		1.035%
Closing stock price		$ 3.413	$ 1.48
Fair Value, Inputs, Level 1 [Member]
Fair Value Measurements [Line Items]
Cash equivalents invested in money market funds			$ 5,361,053	$ 11,995,481
Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements [Line Items]
Issued warrants to purchase shares of common stock					179,241
Exchange Warrants [Member]
Fair Value Measurements [Line Items]
Volatility rate	111.00%		158.08%
Risk-free interest rate	1.46%		1.10%
Closing stock price	$ 8.69		$ 1.48
PIPE Warrants [Member]
Fair Value Measurements [Line Items]
Volatility rate			165.27%
Risk-free interest rate			1.10%
Closing stock price			$ 1.48

Fair Value Measurements (Assets And Liabilities Measure At Fair Value On A Recurring Basis By Level) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 5,361,053	$ 11,995,481
Total Assets at Fair Value	5,361,053	11,995,481
Total Liabilities at Fair Value	2,134,187	5,644,626
Warrants Issued December 29, 2008 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued		16,863
Warrants Issued May 10, 2012 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued	728,712	1,915,753
Warrants Issued August 2013 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued	1,405,475	3,712,010
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	5,361,053	11,995,481
Total Assets at Fair Value	5,361,053	11,995,481
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents
Total Assets at Fair Value
Total Liabilities at Fair Value
Fair Value, Inputs, Level 2 [Member] \| Warrants Issued December 29, 2008 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued
Fair Value, Inputs, Level 2 [Member] \| Warrants Issued May 10, 2012 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued
Fair Value, Inputs, Level 2 [Member] \| Warrants Issued August 2013 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Liabilities at Fair Value	2,134,187	5,644,626
Fair Value, Inputs, Level 3 [Member] \| Warrants Issued December 29, 2008 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued		16,863
Fair Value, Inputs, Level 3 [Member] \| Warrants Issued May 10, 2012 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued	728,712	1,915,753
Fair Value, Inputs, Level 3 [Member] \| Warrants Issued August 2013 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of warrants issued	$ 1,405,475	$ 3,712,010

Fair Value Measurements (Summary Of Changes In The Fair Value Of The Company's Level 3 Financial Asset And Liabilities) (Details)	12 Months Ended
	Dec. 31, 2014 USD ($)
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Balance at beginning of period	$ 5,644,626
Liabilities, Revaluation	(3,510,439)
Liabilities, Balance at end of period	2,134,187
Warrants Issued December 29, 2008 [Member]
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Balance at beginning of period	16,863
Liabilities, Revaluation	(16,863)
Warrants Issued May 10, 2012 [Member]
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Balance at beginning of period	1,915,753
Liabilities, Revaluation	(1,187,041)
Liabilities, Balance at end of period	728,712
Warrants Issued August 2013 [Member]
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Balance at beginning of period	3,712,010
Liabilities, Revaluation	(2,306,535)
Liabilities, Balance at end of period	$ 1,405,475

Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Valid portion of valuation allowance, percentage	100.00%
Number of prior years subject to examination	10 years
Reserves for uncertain tax positions	$ 200,000	$ 200,000
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Accrued interest and penalties	100,000
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	85,000,000
State [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 1,400,000

Income Taxes (Provision For Income Taxes) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Federal	$ (894,506)	$ (93,078,760)	$ 4,586,506
State and local	(1,582,500)	(6,128,198)	493,946
Deferred Income Tax Expense (Benefit), Total	(2,477,006)	(99,206,958)	5,080,452
Valuation allowance	2,477,006	99,206,958	(5,080,452)
Income Tax Benefit

Income Taxes (Schedule of Reconciliation of Federal Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
U.S. statutory income tax rate	34.00%	34.00%	34.00%
State and local taxes, net of federal tax benefit	2.40%	0.30%	5.70%
Permanent differences between book and tax	17.10%	(26.90%)	22.10%
Deferred tax adjustments	(71.90%)	(151.70%)	(8.20%)
State rate adjustments	(29.20%)
Valuation allowance	47.60%	144.30%	(53.60%)
Effective income tax rate

Income Taxes (Schedule of Deferred Tax Asset) (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
Current accruals	$ 1,416,823	$ 1,998,086
Depreciation and amortization	2,302,685	2,566,979
Deferred compensation	1,589,935	5,421,688
Net operating loss carryovers	30,246,136	28,045,831
Deferred tax assets	35,555,579	38,032,584
Valuation allowance	(35,555,579)	(38,032,584)
Net deferred tax assets

Net Loss Per Share (Computation of Basic and Diluted EPS) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net loss per common share:
Numerator for basic EPS	$ 856,216	$ 22,670	$ (1,941,479)	$ (4,139,848)	$ (3,962,208)	$ (56,868,442)	$ (3,006,792)	$ (4,920,147)	$ (5,202,441)	$ (68,757,589)	$ (9,238,427)
Numerator for diluted EPS									$ (5,202,441)	$ (68,757,589)	$ (9,238,427)
Denominator for basic EPS - weighted average shares									19,945,038	11,554,566	6,944,928
Denominator for diluted EPS									19,945,038	11,554,566	6,944,928
Basic EPS	$ 0.04	$ 0.00	$ (0.10)	$ (0.21)	$ (0.23)	$ (4.49)	$ (0.37)	$ (0.61)	$ (0.26)	$ (5.95)	$ (1.33)
Diluted EPS	$ 0.04	$ 0.00	$ (0.10)	$ (0.21)	$ (0.23)	$ (4.49)	$ (0.37)	$ (0.61)	$ (0.26)	$ (5.95)	$ (1.33)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.18)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.22)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e565-108580

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 19
-Article 5

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

+ Details

Net Loss Per Share (Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share) (Details) - shares	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,382,780	3,805,608	7,071,230
Restricted Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		6,600	68,543
Options to Purchase Common Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	487,146	188,947	373,899
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	697,751	588,759	529,312
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,197,883	3,021,302	6,099,476

Employee Benefit Plan (Details) - USD ($)	12 Months Ended
Employee Benefit Plan (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Empoyee Benefit Plan [Abstract]
Maximum employer match of eligible contributions	3.00%
Defined Contribution Plan, Cost Recognized	$ 0	$ 0	$ 8,595

Product Warranty Provisions (Schedule Of Accrued Warranty) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Product Warranty Provisions [Abstract]
Warranty accrual, beginning of the fiscal period	$ 501,212	$ 653,473
Accrual adjustment for product warranty	84,402	84,562
Payments made	(221,066)	(236,823)
Warranty accrual, end of the fiscal period	$ 364,548	$ 501,212
Standard product warranty, coverage term	1 year

Commitments And Contingencies (Details) $ in Millions	Dec. 31, 2012 USD ($)
Commitments And Contingencies [Abstract]
Letter of credit	$ 0.1

Segment Information (Details) - USD ($)	3 Months Ended								12 Months Ended
Segment Information (Details) - USD ($)	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
International
Total revenue	$ 9,754,968	$ 8,854,101	$ 8,047,537	$ 8,354,670	$ 9,068,026	$ 10,821,444	$ 9,733,407	$ 8,408,204	$ 35,011,276	$ 38,031,081	$ 46,562,434
United States [Member]
International
Total revenue									21,626,788	24,063,932	27,034,200
International [Member]
International
Total revenue									$ 13,384,488	$ 13,967,149	$ 19,528,234

Quarterly Data (Details) - USD ($)	3 Months Ended								12 Months Ended
Quarterly Data (Details) - USD ($)	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Data [Abstract]
Revenues	$ 9,754,968	$ 8,854,101	$ 8,047,537	$ 8,354,670	$ 9,068,026	$ 10,821,444	$ 9,733,407	$ 8,408,204	$ 35,011,276	$ 38,031,081	$ 46,562,434
Gross Profit	7,473,368	6,516,169	6,062,775	6,735,584	6,230,882	7,321,820	7,261,519	6,215,559	26,787,896	27,029,780	31,781,379
Net Loss	$ 856,216	$ 22,670	$ (1,941,479)	$ (4,139,848)	$ (3,962,208)	$ (56,868,442)	$ (3,006,792)	$ (4,920,147)	$ (5,202,441)	$ (68,757,589)	$ (9,238,427)
Basic EPS	$ 0.04	$ 0.00	$ (0.10)	$ (0.21)	$ (0.23)	$ (4.49)	$ (0.37)	$ (0.61)	$ (0.26)	$ (5.95)	$ (1.33)
Diluted EPS	$ 0.04	$ 0.00	$ (0.10)	$ (0.21)	$ (0.23)	$ (4.49)	$ (0.37)	$ (0.61)	$ (0.26)	$ (5.95)	$ (1.33)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Valuation And Qualifying Accounts (Details) - USD ($)	12 Months Ended
Valuation And Qualifying Accounts (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance For Doubtful Accounts And Returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 383,077	$ 640,183	$ 667,529
Additions Charged to Cost and Expenses	48,742	65,781	763
Deductions	(300,355)	(322,887)	(28,109)
Balance at the End of Year	131,464	383,077	640,183
Allowance For Inventory Valuation [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	80,213	72,639	151,157
Additions Charged to Cost and Expenses	6,970	179,803	122,783
Deductions	(27,549)	(172,229)	(201,301)
Balance at the End of Year	$ 59,634	$ 80,213	$ 72,639