Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating activities:
Net income (loss)	$ 22,830,320	$ (14,117,662)
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation and amortization	745,396	653,764
Derivative loss (gain)	5,346,039	(559,556)
Stock-based compensation expense	700,008	448,693
Changes in assets and liabilities:
Accounts receivable	78,040	410,589
Prepaid expenses and other assets	100,759	(606,626)
Accounts payable and accrued expenses	751,170	791,001
Deferred revenue	2,400,800	35,913
Net cash flows from operating activities	32,952,532	(12,943,884)
Investing activities:
Purchase of equipment	(24,792)	(127,760)
Purchase of intangible assets	(1,050,000)
Net cash flows from investing activities	(1,074,792)	(127,760)
Financing activities:
Proceeds from issuance of common stock		13,996,773
Proceeds from exercise of stock options	410,402	349,676
Proceeds from exercise of warrants		1,749,259
Change in amounts due to related parties	(7,805)	(44,623)
Net cash flows from financing activities	402,597	16,051,085
Net change in cash and cash equivalents	32,280,337	2,979,441
Cash and cash equivalents at beginning of period	10,750,205	18,208,659
Cash and cash equivalents at end of period	$ 43,030,542	$ 21,188,100