CONDENSED CONSOLIDATED BALANCE SHEET - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 5,062	$ 6,101
Prepaid expenses and other current assets	284	322
Total current assets	5,346	6,423
Property and equipment, net	243	257
Investment	2,195	2,195
Other long-term assets	325	325
Total assets	8,109	9,200
Current liabilities:
Accounts payable	2,181	2,220
Accounts payable - related parties	21	17
Accrued expenses	446	450
Accrued income taxes	9	9
Other liabilities, current	0	32
Total current liabilities	2,657	2,728
Other liabilities, non-current	131	130
Total liabilities	$ 2,788	$ 2,858
Commitments and contingencies (Note 3)
Stockholders' equity
Preferred stock - $0.0001 par value; 10,000,000 shares authorized; no shares issued and outstanding at March 31, 2016 and December 31, 2015	$ 0	$ 0
Common stock - $0.0001 par value; 80,000,000 shares authorized; 22,721,264 and 22,640,611 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively	2	2
Additional paid-in capital	24,088	23,946
Accumulated deficit	(18,769)	(17,606)
Total stockholders' equity	5,321	6,342
Total liabilities and stockholders' equity	$ 8,109	$ 9,200