BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 8,702	$ 7,401
Marketable securities	3,050	13,762
Other current assets	547	282
Total current assets	12,299	21,445
Marketable securities		2,352
Property and equipment, net	42	66
Other assets	24	766
Total assets	12,365	24,629
Current liabilities:
Accounts payable	622	1,205
Accrued compensation and employee benefits	757	719
Accrued expenses and other liabilities	691	472
Total current liabilities	2,070	2,396
Deferred rent, net of current portion	20	39
Total liabilities	2,090	2,435
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value; 5 million shares authorized; no shares issued or outstanding at December 31, 2017 and 2016
Common stock, $0.001 par value; 100 million shares authorized at December 31, 2017 and 2016; 11,775,062 and 9,082,366 shares issued and outstanding at December 31, 2017 and 2016, respectively	12	9
Additional paid-in capital	141,266	134,715
Accumulated other comprehensive loss	(2)	(19)
Accumulated deficit	(131,001)	(112,511)
Total stockholders’ equity	10,275	22,194
Total liabilities and stockholders’ equity	$ 12,365	$ 24,629