UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities
Net loss	$ (7,325,995)	$ (7,293,644)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expense	1,172,703	957,261
Change in fair value of derivative instruments	(464,703)	1,181,575
Depreciation expense	113,272	139,049
Deferred income taxes	48,105	49,753
Non-cash interest expense	68,130	104,726
Gain on the disposal of property and equipment	(5,393)	(3,500)
Changes in operating assets and liabilities:
Accounts receivable	1,427,113	2,432,641
Unbilled accounts receivable	1,895,858	2,501,117
Prepaid expenses and other current assets	23,869	313,384
Accounts payable	(846,090)	(588,086)
Accrued expenses and other liabilities	(773,517)	203,951
Deferred revenue	(284,937)	(909,939)
Net cash used in operating activities	(4,951,585)	(911,712)
Investing activities
Purchases of property and equipment	(92,269)	(84,579)
Proceeds from the sale of property and equipment	8,000	3,500
Net cash used in investing activities	(84,269)	(81,079)
Financing activities
Repayment of debt	(749,997)	(499,998)
Net repayment of revolving credit agreement	(1,091,740)	(1,330,507)
Net proceeds from exercise of warrants	683,325
Proceeds from issuance of common stock, net of offering costs	15,341,264	6,068,891
Net cash provided by financing activities	14,182,852	4,238,386
Effects of exchange rates on cash	(7,585)	(3,713)
Increase in cash and cash equivalents	9,139,413	3,241,882
Cash and cash equivalents, at beginning of period	10,480,979	12,701,517
Cash and cash equivalents, at end of period	19,620,392	15,943,399
Supplemental disclosure of cash flow information
Cash paid for interest	$ 105,916	$ 184,909