CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash	$ 1,313	$ 1,824
Accounts receivable		500
Prepaid expenses and other current assets	65	192
Total current assets	1,378	2,516
Intangible assets	6,700	6,700
Other assets	45
Total assets	8,123	9,216
Current liabilities:
Accounts payable	759	687
Accrued payroll and employee benefits	326	183
Other accrued liabilities	1,409	1,072
Total current liabilities	2,494	1,942
Fair value liability for price adjustable warrants	3,672	9,225
Fair value of stock to be issued to settle liabilities	12	75
Deferred tax liabilities	2,345	2,345
Total liabilities	$ 8,523	$ 13,587
Commitments and contingencies
Stockholders' deficit:
Preferred Stock Value
Common stock, $0.006 par value; 180,000,000 shares authorized, 25,523,216 and 26,451,237 shares issued and outstanding at December 31, 2014 and September 30, 2015, respectively	$ 159	$ 153
Additional paid-in capital	334,452	333,264
Accumulated deficit	(335,011)	(337,788)
Total stockholders' deficit	(400)	(4,371)
Total liabilities and stockholders' deficit	$ 8,123	$ 9,216
Series C Preferred Stock
Stockholders' deficit:
Preferred Stock Value
Series D Preferred Stock
Stockholders' deficit:
Preferred Stock Value