Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities
Net loss	$ (1,729,983)	$ (755,760)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	275,730	320,003
Loss on the disposal of assets	10,098	0
Stock-based compensation	289,311	465,888
Fair value adjustment of derivative liabilities	(13,295)	306,247
Changes in operating assets and liabilities
Accounts receivable	(501,981)	(293,167)
Prepaid expenses and other assets	22,554	(28,778)
Accounts payable and accrued expenses	(186,226)	(21,471)
Accrued payroll	87,648	(285,371)
Unearned revenue	233,034	(181,220)
Total adjustments	216,873	282,131
Net cash used in operating activities	(1,513,110)	(473,629)
Cash flows from investing activities
Purchases of property and equipment	(26,640)	(123,157)
Proceeds from the sale of equipment	28,441	0
Acquisition of patents	(8,842)	(16,576)
Net cash used in investing activities	(7,041)	(139,733)
Cash flows from financing activities
Proceeds from the exercise of warrants	0	262,500
Proceeds from the exercise of stock options	0	20,200
Proceeds from the issuance of series C-1 preferred stock and warrant, net of issuance costs	0	2,666,485
Cash dividends on series B preferred stock	0	(12,000)
Net cash provided by financing activities	0	2,937,185
Net (decrease) increase in cash	(1,520,151)	2,323,823
Cash
Beginning of period	8,523,807	5,737,009
End of period	7,003,656	8,060,832
Non-cash financing activity:
Accrued dividends on series B and C-1 preferred stock	251,333	83,333
Reclassification of derivative liabilities to additional paid in capital in connection with the series C-1 preferred stock issuance	$ 0	$ 405,233