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CONDENSED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 5,050 $ 4,105
Marketable securities 129,846 90,281
Prepaid and other current assets 1,137 1,277
Total current assets 136,033 95,663
Property and equipment, net 3,248 1,845
Deferred offering costs   951
Other assets 869  
Total assets 140,150 98,459
Current liabilities:    
Accounts payable 1,900 1,575
Accrued and other liabilities 4,044 1,495
Total current liabilities 5,944 3,070
Other liabilities 1,405 710
Total liabilities 7,349 3,780
Commitments and contingencies (Note 13)
Convertible preferred stock: $0.0001 par value; 0 and 14,274,741 shares authorized at December 31, 2016 and December 31, 2015, respectively; 0 and 14,274,741 issued and outstanding at December 31, 2016 and December 31, 2015, respectively   125,780
Stockholders' equity (deficit):    
Preferred stock: $0.0001 par value; 10,000,000 and 0 shares authorized at December 31, 2016 and December 31, 2015, respectively; 0 shares issued and outstanding at December 31, 2016 and December 31, 2015
Common stock: $0.0001 par value; 290,000,000 and 20,000,000 shares authorized at December 31, 2016 and 2015, respectively; 20,922,428 and 1,431,615 shares issued and outstanding at December 31, 2016 and 2015 respectively 2  
Additional paid-in capital 200,709 440
Accumulated other comprehensive income (loss) (39) (45)
Accumulated deficit (67,871) (31,496)
Total stockholders' equity (deficit) 132,801 (31,101)
Total liabilities, convertible preferred stock and stockholders' equity (deficit) $ 140,150 $ 98,459