CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net loss	$ (23,397,354)	$ (9,395,310)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	52,875	45,670
Retirement of fixed assets	4,360	4,372
Stock option and warrant expense	858,937	827,987
Fair value adjustment on warrant liabilities	12,416,358	(1,177,762)
Changes in assets and liabilities:
Receivable	154,946	151,061
Interest receivable	19,105	12,290
Prepaid expenses and other current assets	102,323	(564,867)
Income taxes recoverable	0	519,158
Accounts payable	93,663	405,858
Accrued expenses and other current liabilities	616,083	1,466,170
Net cash used in operating activities	(9,078,704)	(7,705,373)
Cash flows from investing activities:
Net proceeds from sale of marketable securities	2,989,902	1,491,241
Proceeds from sale of unconsolidated subsidiary shares	0	6,938,603
Purchases of equipment and furnishings	(47,979)	(25,725)
Net cash provided by investing activities	2,941,923	8,404,119
Cash flows from financing activities:
Net proceeds from exercise of stock options	7,200	0
Net cash provided by financing activities	7,200	0
Net increase (decrease) in cash	(6,129,581)	698,746
Cash at beginning of period	17,988,590	6,324,430
Cash at end of period	11,859,009	7,023,176
Supplemental disclosure of cash flow information:
Fixed assets purchased on credit	$ 64,022	$ 0