UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating activities
Net loss	$ (3,347,757)	$ (3,436,431)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expense	652,589	1,060,705
Change in fair value of derivative instruments	552,953	167,853
Depreciation expense	94,456	162,358
Deferred provision for income taxes	20,949	166,538
Non-cash interest expense	70,473	40,470
Gain on the disposal of property and equipment		(66,626)
Changes in operating assets and liabilities:
Billed accounts receivable	892,581	979,612
Unbilled accounts receivable	419,811	(1,765,096)
Prepaid expenses and other current assets	355,878	248,707
Accounts payable	1,292,796	617,014
Accrued expenses and other liabilities	(366,136)	408,088
Deferred revenue	(873,580)	(495,571)
Net cash used by operating activities	(234,987)	(1,912,379)
Investing activities
Purchase of property and equipment	(70,581)
Proceeds from the sale of property and equipment		67,400
Net cash provided (used) by investing activities	(70,581)	67,400
Financing activities
Proceeds from issuance (repayment) of long-term debt	(249,999)	2,500,000
Net repayment of revolving credit agreement	(162,364)
Deferred financing costs		(216,460)
Change in restricted cash requirements		100,000
Proceeds from issuance of common stock, net of issuance costs	3,810,403	38,983
Other		(32,960)
Net cash provided by financing activities	3,398,040	2,389,563
Effects of exchange rates on cash	(4,080)	(4,434)
Increases in cash and cash equivalents	3,088,392	540,150
Cash and cash equivalents, at beginning of period	12,701,517	11,236,771
Cash and cash equivalents, at end of period	15,789,909	11,776,921
Supplemental disclosure of cash flow information
Cash paid for interest	129,345	73,911
Noncash financing activities
Value of warrants issued to lender in connection with loan		$ 69,876