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Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 4,065 $ 4,105
Marketable securities 148,235 90,281
Prepaid and other current assets 1,772 1,277
Total current assets 154,072 95,663
Property and equipment, net 2,552 1,845
Deferred offering costs   951
Other assets 600  
Total assets 157,224 98,459
Current liabilities:    
Accounts payable 1,577 1,575
Accrued and other liabilities 1,806 1,495
Total current liabilities 3,383 3,070
Other liabilities 1,291 710
Total liabilities $ 4,674 $ 3,780
Commitments and contingencies (Note 13)
Convertible preferred stock: $0.0001 par value; 0 and 14,274,741 shares authorized at March 31, 2016 and December 31, 2015, respectively; 0 and 14,274,741 issued and outstanding at March 31, 2016 and December 31, 2015, respectively (liquidation preference of $0 and $108,500 at March 31, 2016 and December 31, 2015, respectively)   $ 125,780
Stockholders' equity (deficit):    
Preferred stock: $0.0001 par value; 10,000,000 and 0 authorized at March 31, 2016 and December 31, 2015, respectively; no shares issued and outstanding at March 31, 2016 and December 31, 2015
Common stock: $0.0001 par value; 290,000,000 and 20,000,000 shares authorized at March 31, 2016 and December 31, 2015, respectively; 20,406,856 and 1,431,615 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively $ 2  
Additional paid-in capital 190,362 $ 440
Accumulated other comprehensive loss 29 (45)
Accumulated deficit (37,843) (31,496)
Total stockholders' equity (deficit) 152,550 (31,101)
Total liabilities, convertible preferred stock and stockholders' equity (deficit) $ 157,224 $ 98,459