(6) Income Taxes (Details 1) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Deferred Tax Assets:
Allowance for receivables	$ 350,738	$ 643,080
Deferred revenue	3,104,017	2,826,497
Share-based compensation	10,655,853	9,449,070
Accrued expenses and other liabilities	669,844	153,732
Domestic net operating loss carryforwards	16,526,224	11,559,661
Foreign net operating loss carryforwards	405,818	486,687
Tax credit carryforwards	654,966	728,902
AMT tax credit carryforwards	485,817	485,817
Capital loss carryforwards	80,055	77,240
Fixed assets	957,107	1,018,976
Intangibles	3,195,185	3,698,607
Sub-total	37,085,624	31,128,269
Valuation allowance	36,606,643	30,732,700
Net Deferred Tax Asset	478,981	395,569
Deferred Tax Liabilities:
Foreign withholding taxes	(96,360)	0
Net Deferred Tax Liability	(96,360)	0
Net Deferred Tax Assets	$ 382,621	$ 395,569