CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 6,348	$ 3,443
Accounts receivable	17	9
Prepaid expenses and other current assets	248	340
Total current assets	6,613	3,792
Non-current assets:
Restricted cash	789	2,039
Property and equipment, at cost, net	53	25
Intangible assets, net	2,303	1,795
Goodwill	4,972	0
Other non-current assets	2	0
Total assets	14,732	7,651
Liabilities
Accounts payable	347	242
Accrued expenses	99	272
Other payables	400	67
Loan payable - related party	100	0
Total current liabilities	946	581
Non-current liabilities:
Derivative liability - warrants	0	7,166
Total liabilities	946	7,747
Commitments and contingencies
Stockholders' equity/(deficit)
Common stock, $0.001 par value; 75,000,000 shares authorized; 6,303,846 and 3,251,187 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively	6	3
Additional paid in capital	300,592	282,998
Accumulated other comprehensive loss	(281)	(281)
Accumulated deficit	(289,149)	(283,631)
Total stockholders' equity	11,168	(911)
Non-controlling interests	2,503	768
Total equity	13,671	(143)
Total stockholders' equity/(deficit), liabilities and non-controlling interest	14,732	7,651
Undesignated Preferred Stock [Member]
Stockholders' equity/(deficit)
Undesignated Preferred stock, $0.001 par value; 8,584,301 and 8,605,234 shares authorized at June 30, 2013 and December 21, 2012, respectively. No shares authorized, issued and outstanding at June 30, 2013 and December 31, 2012	0	0
Series A Convertible Preferred Stock [Member]
Redeemable convertible preferred stock - temporary equity
Preferred stock, Series A Convertible Preferred, $0.001 par value; 1,415,699 and 1,394,766 shares authorized at June 30, 2013 and December 31, 2012, respectively; 15,512 and 1,394,766 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively	$ 115	$ 47