CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 3,321,937	$ 4,120,074
Accounts receivable	6,386,586	4,733,698
Prepaid expenses and other current assets	567,686	941,981
Total current assets	10,276,209	9,795,753
Property and equipment, net	1,307,513	805,817
Total assets	11,583,722	10,601,570
Current liabilities
Accounts payable	1,699,448	1,247,151
Accrued expenses	419,818	1,075,636
Accrued royalties	516,357	809,694
Accrued payroll and related liabilities	1,208,836	1,271,037
Deferred revenue	828,645	1,518,696
Total current liabilities	4,673,104	5,922,214
Deferred revenue, net of current portion	32,006	100,070
Total liabilities	4,705,110	6,022,284
Commitments and contingencies (Note 5)
Common stock classified outside of stockholders' equity (deficit)	7,854,682	7,854,682
Stockholders' equity (deficit)
Common stock, $0.01 par value; 50,000,000 shares authorized; 18,357,406 and 19,537,232 shares issued and outstanding at December 31, 2010 and June 30, 2011, respectively	134,327	122,942
Additional paid-in capital	43,283,397	40,612,785
Accumulated deficit	(44,161,397)	(43,817,163)
Accumulated other comprehensive loss	(232,397)	(193,960)
Total stockholders' equity (deficit)	(976,070)	(3,275,396)
Total liabilities and stockholders' equity (deficit)	$ 11,583,722	$ 10,601,570