v3.19.1
Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities:    
Net loss $ (13,791) $ (5,071)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization expense 1,341 1,360
Stock-based compensation expense 7,121 1,860
Noncash interest expense 14 20
Deferred rent 337 528
Changes in operating assets and liabilities:    
Accounts receivable (2,766) (2,478)
Prepaid expenses and other current assets (863) (8)
Other assets   (75)
Accounts payable 4,932 1,552
Accrued expenses and other current liabilities 1,324 469
Deferred revenue 454 171
Net cash used in operating activities (1,897) (1,672)
Cash flows from investing activities:    
Acquisition of property and equipment, including costs capitalized for development of internal-use software (3,668) (1,185)
Net cash used in investing activities (3,668) (1,185)
Cash flows from financing activities:    
Proceeds from initial public offering, net of underwriting discounts and commissions 52,313  
Proceeds from exercise of stock options 861 1,549
Repurchase of common stock   (9,229)
Proceeds from borrowings on line of credit 22,729 20,300
Repayments of borrowings on line of credit (24,729) (18,300)
Repayments of term loan (2,625) (1,500)
Payments of initial public offering costs (3,713)  
Net cash provided by (used in) financing activities 44,836 (7,180)
Net increase (decrease) in cash, cash equivalents and restricted cash 39,271 (10,037)
Cash, cash equivalents and restricted cash at beginning of period 2,613 12,650
Cash, cash equivalents and restricted cash at end of period 41,884 2,613
Supplemental disclosure of cash flow information    
Cash paid for interest 214 352
Supplemental disclosure of noncash investing and financing information:    
Conversion of convertible preferred stock to common stock 88,352 98
Conversion of Series B redeemable convertible preferred stock to Series B-1 redeemable convertible preferred stock   7,900
Retirement of treasury stock   9,229
Accretion of redeemable convertible preferred stock to redemption value $ 37,415 $ 14,093