CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 8,312	$ 12,416
Available-for-sale securities	83,988	20,086
Prepaid expenses and other current assets	2,349	1,547
Total Current Assets	94,649	34,049
Property and equipment, net	489	30
Security deposits	94	20
Due from controlling shareholder		3,306
Total Assets	95,232	37,405
Current Liabilities:
Accounts payable	4,980	5,255
Accrued expenses	2,989	2,060
Total Current Liabilities	7,969	7,315
Derivative financial instruments, at estimated fair value-warrants	973	5,258
Total Liabilities	8,942	12,573
Stockholders' Equity:
Preferred stock, Authorized 20,000,000 shares and none outstanding, at June 30, 2013 and December 31, 2012
Common stock, par value of $.0001 authorized 200,000,000 shares at June 30, 2013 and 100,000,000 shares at December 31, 2012. Issued and outstanding 90,182,115 and 66,621,832 shares at June 30, 2013 and December 31, 2012, respectively	10	7
Additional paid-in capital	224,069	133,878
Deficit accumulated during development stage	(137,789)	(109,053)
Total Stockholders' Equity	86,290	24,832
Total Liabilities and Stockholders' Equity	$ 95,232	$ 37,405