CONDENSED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (2,977,891)	$ (2,644,540)
Adjustments to reconcile loss to net cash used in operating activities:
Depreciation and amortization	108,277	168,082
Stock-based compensation expense	60,284	96,131
Change in fair value of warrants	286,579	0
Changes in operating assets and liabilities:
Accounts receivable	12,867	24,654
Receivable from related party	224,252	(2,254)
Inventory	49,202	19,390
Prepaid expenses and other current assets	(47,974)	(26,209)
Accounts payable	386,543	(10,198)
Accrued expenses	43,058	12,184
Deferred revenue	329,613	146,098
Net cash used in operating activities	(1,525,190)	(2,216,662)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital additions	(10,247)	(5,000)
Net cash used in investing activities	(10,247)	(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	(859,206)	0
Proceeds from exercises of employee stock options	520	0
Proceeds from employee stock purchase plan	12,839	8,810
Net cash provided by financing activities	11,154,153	4,325,065
Net increase in cash and cash equivalents	9,618,716	2,103,403
Cash and cash equivalents, beginning of period	1,225,426	1,728,222
Cash and cash equivalents, end of period	10,844,142	3,831,625
Supplemental disclosures of cash flow information:
Cash paid for interest	291,914	204,884
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