CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 2,136,623	$ 8,148,599
Accounts receivable, net of allowance for doubtful accounts of $2,404,659 and $1,912,668 at December 31, 2013 and June 30, 2014, respectively.	6,529,550	6,225,923
Prepaid expenses and other current assets	1,146,921	981,908
Total current assets	9,813,094	15,356,430
Property and equipment, net	1,691,538	1,934,582
Intangible assets, net	718,018	767,223
Total assets	12,222,650	18,058,235
Current liabilities
Accounts payable	1,658,383	1,694,312
Accrued expenses	505,952	666,675
Accrued royalties	1,441,668	1,293,717
Accrued payroll and related liabilities	1,906,937	1,850,923
Capital lease obligation, current portion	101,015	157,238
Total current liabilities	5,613,955	5,662,865
Capital lease obligation, net of current portion	95,058	136,419
Line of credit, non-current	1,500,000	1,000,000
Total liabilities	7,209,013	6,799,284
Commitments and contingencies and subsequent events (Notes 5 and 11)
Common stock classified outside of stockholders’ equity	0	5,500,000
Stockholders' equity
Common stock, $0.01 par value; 50,000,000 shares authorized ; 38,712,896 and 38,732,896 shares issued and outstanding at December 31, 2013 and June 30, 2014, respectively	387,385	337,185
Additional paid-in capital	76,857,194	70,986,406
Accumulated deficit	(71,940,591)	(65,297,179)
Accumulated other comprehensive loss	(290,351)	(267,461)
Total stockholders’ equity	5,013,637	5,758,951
Total liabilities, common stock classified outside of stockholders’ equity and stockholders’ equity	$ 12,222,650	$ 18,058,235