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BALANCE SHEETS (Unaudited) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 29,717 $ 38,802
Marketable securities 910  
Other current assets 391 114
Total current assets 31,018 38,916
Marketable securities 5,306  
Property and equipment, net 24 28
Other assets 580 630
Total assets 36,928 39,574
Current liabilities:    
Accounts payable 744 364
Payable for purchases of marketable securities 1,009  
Accrued compensation and employee benefits 152 669
Accrued expenses and other liabilities 439 471
Total current liabilities $ 2,344 $ 1,504
Commitments and contingencies
Stockholders’ equity:    
Common stock, $0.001 par value; 100 million shares authorized at March 31, 2016 and December 31, 2015; 9,056,647 and 9,051,217 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively $ 9 $ 9
Additional paid-in capital 134,283 134,128
Accumulated other comprehensive income 6  
Accumulated deficit (99,714) (96,067)
Total stockholders’ equity 34,584 38,070
Total liabilities and stockholders’ equity $ 36,928 $ 39,574