Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	May. 23, 2016	Mar. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 189		$ 359
Prepaid expenses and other current assets	3		61
Investments available for sale	880		444
Notes receivable	640		1,575
Total current assets	$ 1,712		2,439
Non-current assets:
Restricted cash			39
Property and equipment, at cost, net	$ 30		35
Intangible assets, net	673		730
Goodwill	1,496		$ 1,496
Note receivable, net	30
Investments, at cost	1,380		$ 1,380
Total assets	5,321		6,119
Current liabilities
Accounts payable	122		63
Accrued expenses	37		15
Other payables	12		1
Total current liabilities	171		79
Total liabilities	$ 171		$ 79
Commitments and contingencies
Stockholders' equity:
Common Stock, $0.001 par value; 75,000,000 shares authorized; 18,088,221 and 17,928,221 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	$ 18		$ 18
Additional paid-in capital	311,207		311,167
Accumulated other comprehensive loss	(776)		(1,206)
Accumulated deficit	(305,281)		(303,944)
Total stockholders' equity	5,168		6,035
Non-controlling interests	(18)		5
Total equity	5,150		6,040
Total equity, liabilities, redeemable convertible preferred stock and non-controlling interest	$ 5,321		$ 6,119
Series A Convertible Preferred Stock [Member]
Redeemable convertible preferred stock - Temporary equity:
Preferred stock, Series A convertible preferred, $0.001 par value, 1,500,000 shares authorized at March 31, 2016 and December 31, 2015; 10,768 and 10,608 shares outstanding at March 31, 2016 and December 31, 2015, respectively
Undesignated Preferred Stock [Member]
Stockholders' equity:
Undesignated preferred stock, $0.001 par value, 8,583,840 shares authorized at March 31, 2016 and December 31, 2015. No shares issued and outstanding at March 31, 2016 and December 31, 2015