v3.8.0.1
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Operating activities    
Net loss $ (38,708) $ (36,778)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 1,137 935
Loss on disposal of assets   3
Stock-based compensation expense 3,148 3,504
Net amortization of premiums and discounts on marketable securities (27)  
Changes in operating assets and liabilities:    
Prepaid expenses and other current assets 22 (847)
Accounts receivable 867  
Other long-term assets (370) (443)
Accounts payable (295) 1,426
Accrued expenses 849 1,469
Deferred revenue (550)  
Deferred rent and lease incentive (235) (209)
Net cash used in operating activities (34,162) (30,940)
Investing activities    
Purchases of property and equipment (754) (2,008)
Purchases of marketable securities (41,768)  
Sales or maturities of marketable securities 27,000  
Net cash used in investing activities (15,522) (2,008)
Financing activities    
Payments on capital lease obligations (125) (95)
Proceeds from issuance of common stock through employee benefit plans 918 360
Proceeds from issuance of convertible preferred stock, net of issuance costs   39,813
Proceeds from issuance of common stock through private placement, net of placement agent fees 32,865  
Proceeds from initial public offering of common stock, net of issuance costs   50,455
Payments of offering costs (413)  
Net cash provided by financing activities 33,245 90,533
Increase (decrease) in cash and cash equivalents (16,439) 57,585
Cash and cash equivalents, Beginning of period 58,588 35,909
Cash and cash equivalents, End of period 42,149 93,494
Supplemental disclosure of cash flow information:    
Cash paid for interest 8 15
Non-cash investing and financing activities    
Conversion of convertible preferred stock into common stock   82,013
Property and equipment received but unpaid as of period end 9 76
Assets acquired under capital lease   $ 17
Offering costs incurred but unpaid as of period end $ 60  

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