Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 20,521	$ 23,052
Investment securities	6,429	17,929
Prepaid expenses and other current assets	1,333	1,271
Total current assets	28,283	42,252
Property and equipment, net	148	226
In-process research and development	8,549	8,549
Goodwill	3,007	3,007
Other assets	131	183
Total assets	40,118	54,217
Current liabilities:
Accounts payable	1,497	2,600
Accrued liabilities	6,902	8,152
Accrued compensation and payroll taxes	901	1,430
Debt facility	11,593	10,991
Total current liabilities	20,893	23,173
Long-term lease obligation	19	25
Debt facility, net of current portion	2,615	3,726
Deferred income tax liability	3,404	3,404
Total liabilities	26,931	30,328
Stockholders' equity:
Common stock, $0.001 par value; 500,000,000 shares authorized; 232,892,110 and 163,614,297 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively	233	164
Additional paid-in capital	317,988	298,715
Accumulated other comprehensive income/(loss)	4	(17)
Accumulated deficit	(305,038)	(274,973)
Total stockholders' equity	13,187	23,889
Total liabilities and stockholders' equity	$ 40,118	$ 54,217