CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 12,064	$ 12,416
Available-for-sale securities	70,041	20,086
Prepaid expenses and other current assets	5,244	1,547
Total Current Assets	87,349	34,049
Property and equipment, net	617	30
Security deposits	94	20
Due from controlling shareholder		3,306
Total Assets	88,060	37,405
Current Liabilities:
Accounts payable	10,275	5,255
Accrued expenses	2,892	2,060
Total Current Liabilities	13,167	7,315
Derivative financial instruments, at estimated fair value-warrants	1,050	5,258
Total Liabilities	14,217	12,573
Stockholders' Equity:
Preferred stock, Authorized 20,000,000 shares and none outstanding, at September 30, 2013 and December 31, 2012
Common stock, par value of $.0001 authorized 200,000,000 shares at September 30, 2013 and 100,000,000 shares at December 31, 2012. Issued and outstanding 90,182,115 and 66,621,832 shares at September 30, 2013 and December 31, 2012, respectively	10	7
Additional paid-in capital	225,159	133,878
Deficit accumulated during development stage	(151,326)	(109,053)
Total Stockholders' Equity	73,843	24,832
Total Liabilities and Stockholders' Equity	$ 88,060	$ 37,405