CONDENSED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (5,153,948)	$ (3,930,765)
Adjustments to reconcile loss to net cash used in operating activities:
Depreciation and amortization	161,302	225,299
Stock-based compensation expense	84,608	170,875
Change in fair value of warrants	297,547	0
Changes in operating assets and liabilities:
Accounts receivable	31,685	(1,442)
Receivable from related party	550,297	(5,926)
Inventory	25,682	43,213
Prepaid expenses and other current assets	(139,215)	(48,400)
Accounts payable	688,154	(76,230)
Accrued expenses	25,578	198,896
Deferred revenue	164,920	146,472
Net cash used in operating activities	(3,323,390)	(3,278,008)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital additions	(273,653)	(5,000)
Net cash used in investing activities	(273,653)	(5,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of notes payable	0	1,316,255
Proceeds from private placement of preferred stock	0	3,000,000
Proceeds from private placement of common stock	12,000,000	0
Private placement offering costs	(988,626)	(281,123)
Proceeds from exercises of employee stock options	80,520	0
Proceeds from employee stock purchase plan	23,232	8,810
Net cash provided by financing activities	11,115,126	4,043,942
Net increase in cash and cash equivalents	7,518,083	760,934
Cash and cash equivalents, beginning of period	1,225,426	1,728,222
Cash and cash equivalents, end of period	8,743,509	2,489,156
Supplemental disclosures of cash flow information:
Cash paid for interest	219,914	319,478
Supplemental disclosures of non-cash financing activities:
Warrants issued in connection with private placements	0	104,907
Conversion of debt to common stock	14,316,255	0
Interest related to fair value of warrants market adjustment	$ 297,547	$ 0