Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating activities:
Net income (loss)	$ 1,652,181	$ (23,325,116)	$ (13,032,942)
Adjustments to reconcile net income (loss) to net cash flows from operating activities
Depreciation	465,929	444,527	422,127
Amortization of Intangible Assets	1,020,878	890,980	844,216
Derivative loss (gain)	5,594,152	(3,463,453)	(3,126,771)
Stock-based compensation expense	1,619,269	1,226,724	1,376,467
Intangible license impairment			243,648
Warrants received in settlement			(382,800)
Changes in assets and liabilities:
Accounts receivable	(419,680)	530,544	635,526
Prepaid expenses and other assets	3,822	6,226	51,866
Accounts payable and accrued expenses	5,567,962	407,441	809,517
Income Taxes Payable	129,120		(312,128)
Deferred Revenue	(3,446,309)	7,133	788,977
Net cash flows from operating activities	12,187,324	(23,274,994)	(11,682,297)
Investing activities:
Purchase of equipment	(38,550)	(286,973)	(103,985)
Purchase of intangible assets	(1,050,000)		(1,000,000)
Net cash flows from investing activities	(1,088,550)	(286,973)	(1,103,985)
Financing activities:
Proceeds from sales of securities	38,373,014	13,996,773	9,747,500
Proceeds from exercise of stock options	2,054,100	349,676	97,882
Proceeds from exercise of common stock warrants	921,019	1,749,259
(Repayment of) proceeds from related party advances, net	(7,805)	7,805	(2,723,844)
Net cash flows from financing activities	41,340,328	16,103,513	7,121,538
Net change in cash and cash equivalents	52,439,102	(7,458,454)	(5,664,744)
Cash and cash equivalents at beginning of year	10,750,205	18,208,659	23,873,403
Cash and cash equivalents at end of year	$ 63,189,307	$ 10,750,205	$ 18,208,659