CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 5,881,961	$ 9,041,478
Accounts receivable, net of allowance for doubtful accounts of $991,990 and $903,961 at December 31, 2012 and June 30, 2013, respectively.	6,449,691	5,373,023
Prepaid expenses and other current assets	984,033	576,112
Total current assets	13,315,685	14,990,613
Property and equipment, net	1,181,470	1,023,198
Intangible assets, net	572,386	575,409
Total assets	15,069,541	16,589,220
Current liabilities
Accounts payable	705,247	1,191,122
Accrued expenses	618,574	343,913
Accrued royalties	1,078,296	712,776
Accrued payroll and related liabilities	1,969,756	1,382,265
Capital lease obligation, current portion	208,503	158,669
Deferred revenue	0	483,052
Line of credit, current	0	1,000,000
Total current liabilities	4,580,376	5,271,797
Capital lease obligation, net of current portion	184,155	83,910
Line of credit, non-current	1,000,000	0
Total liabilities	5,764,531	5,355,707
Commitments and contingencies (Note 5)
Common stock classified outside of stockholders’ equity (deficit)	5,500,000	11,775,724
Stockholders’ equity (deficit)
Common stock, $0.01 par value; 50,000,000 shares authorized; 32,797,625 and 32,798,459 shares issued and outstanding at December 31, 2012 and June 30, 2013, respectively	278,041	232,414
Additional paid-in capital	63,190,943	56,766,036
Accumulated deficit	(59,398,122)	(57,276,664)
Accumulated other comprehensive loss	(265,852)	(263,997)
Total stockholders’ equity (deficit)	3,805,010	(542,211)
Total liabilities, common stock classified outside of stockholders’ equity (deficit) and stockholders’ equity (deficit)	$ 15,069,541	$ 16,589,220