BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 8,095	$ 38,802
Marketable securities	15,373
Other current assets	320	114
Total current assets	23,788	38,916
Marketable securities	3,967
Property and equipment, net	69	28
Other assets	855	630
Total assets	28,679	39,574
Current liabilities:
Accounts payable	1,141	364
Accrued compensation and employee benefits	162	669
Accrued expenses and other liabilities	853	471
Total current liabilities	2,156	1,504
Deferred rent, net of current portion	43
Total liabilities	2,199	1,504
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.001 par value; 100 million shares authorized at September 30, 2016 and December 31, 2015; 9,080,703 and 9,051,217 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively	9	9
Additional paid-in capital	134,744	134,128
Accumulated other comprehensive income	(6)
Accumulated deficit	(108,267)	(96,067)
Total stockholders’ equity	26,480	38,070
Total liabilities and stockholders’ equity	$ 28,679	$ 39,574