CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 9,067	$ 12,416
Available-for-sale securities	12,049	20,086
Prepaid expenses and other current assets	1,573	1,547
Total Current Assets	22,689	34,049
Property and equipment, net	108	30
Security deposits	93	20
Due from controlling shareholder		3,306
Total Assets	22,890	37,405
Current Liabilities:
Accounts payable	5,978	5,255
Accrued expenses	3,312	2,060
Total Current Liabilities	9,290	7,315
Derivative financial instruments, at estimated fair value-warrants	6,351	5,258
Total Liabilities	15,641	12,573
Stockholders' Equity:
Preferred stock, Authorized 20,000,000 shares, at March 31, 2013 and December 31, 2012, none outstanding
Common stock, par value of $.0001 authorized 200,000,000 shares at March 31, 2013 and 100,000,000 shares at December 31, 2012. Issued and outstanding 73,779,680 and 66,621,832 shares at March 31, 2013 and December 31, 2012, respectively.	8	7
Additional paid-in capital	134,991	133,878
Deficit accumulated during development stage	(127,750)	(109,053)
Total Stockholders' Equity	7,249	24,832
Total Liabilities and Stockholders' Equity	$ 22,890	$ 37,405