CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net loss	$ (9,395,310)	$ 683,361
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	45,670	58,843
Retirement of fixed assets	4,372	30,171
Non-cash gain on transfer of RXi common stock	0	(8,887,614)
Stock option and warrant expense	827,987	1,103,232
Fair value adjustment on warrant liability	(1,177,762)	(1,411,577)
Changes in assets and liabilities:
Receivable	151,061	80,365
Interest receivable	12,290	3,882
Prepaid expenses and other current assets	(564,867)	279,549
Income taxes recoverable	519,158	0
Accounts payable	405,858	(477,254)
Accrued expenses and other current liabilities	1,466,170	584,001
Net cash used in operating activities	(7,705,373)	(7,953,041)
Cash flows from investing activities:
Net proceeds from sale of marketable securities	1,491,241	1,726,260
Proceeds from sale of assets held for sale	0	40,131
Proceeds from sale of unconsolidated subsidiary shares	6,938,603	8,887,614
Purchases of equipment and furnishings	(25,725)	(289,283)
Net cash provided by investing activities	8,404,119	10,364,722
Cash flows from financing activities:
Net proceeds from exercise of stock options	0	147,243
Net cash provided by financing activities	0	147,243
Net increase in cash and cash equivalents	698,746	2,558,924
Cash and cash equivalents at beginning of period	6,324,430	9,893,590
Cash and cash equivalents at end of period	7,023,176	12,452,514
Supplemental disclosure of cash flow information:
Cash received during the period as interest income	$ 117,988	$ 52,962