STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
CASH FLOW FROM OPERATING ACTIVITIES:
Net loss	$ (7,414,099)	$ (7,898,013)
Adjustments to reconcile net loss from continuing operations to net cash used in operating activities:
Depreciation and amortization	251,021	349,254
Amortization of loan issuance costs and FV of warrants	171,127	108,224
Stock-based compensation expense	971,688	892,087
Changes in operating assets and liabilities:
Receivable from related party	(34,546)	(16,445)
Trade accounts receivable	14,619	(31,960)
Inventory	51,519	46,992
Prepaid expenses and other assets	343,987	(274,251)
Accounts payable	97,256	(105,553)
Accrued expenses	(259,601)	154,463
Deferred revenue	(735,575)	84,043
Net cash used in operating activities	(6,542,604)	(6,691,159)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital additions	(84,863)	(82,489)
Net cash used in investing activities	(84,863)	(82,489)
CASH FLOW FROM FINANCING ACTIVITIES:
Proceeds from private placement of common stock and warrants	5,592,500	0
Private placement offering costs	(62,849)	(8,095)
Payment of notes payable	(967,045)	0
Proceeds from employee stock purchase plan and employee option exercises	16,057	20,954
Net cash provided by financing activities	4,578,663	12,859
Net decrease in cash and equivalents	(2,048,804)	(6,760,789)
Cash, beginning of period	4,706,018	11,466,807
Cash, end of period	2,657,214	4,706,018
Supplemental disclosures of cash flow information:
Cash paid for interest	429,267	467,500
Supplemental disclosures of non-cash investing and financing activities:
Warrants issued in connection with long term debt amendment	$ 5,169,577	$ 0