v3.20.1
Consolidated Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities:      
Net income (loss) $ 1,798,000 $ (2,725,000) $ (9,980,000)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
Depreciation and amortization 4,982,000 3,917,000 3,121,000
Impairment of property and equipment 0 686,000 793,000
Stock-based compensation 3,057,000 2,468,000 628,000
Amortization of debt issuance costs     132,000
Remeasurement of convertible preferred stock warrant liability     3,725,000
Loss on early extinguishment of debt     479,000
Loss on disposal of property and equipment   4,000  
Changes in operating assets and liabilities:      
Accounts receivable and contract asset 1,383,000 (11,224,000) (1,518,000)
Prepaid expenses and other assets (192,000) (766,000) (247,000)
Accounts payable (243,000) (346,000) 291,000
Accrued expenses and other current liabilities 108,000 (246,000) 1,535,000
Deferred revenue 2,799,000 6,846,000 4,428,000
Net cash provided by (used in) operating activities 13,692,000 (1,386,000) 3,387,000
Cash flows from investing activities:      
Purchase of property and equipment (4,823,000) (8,444,000) (6,430,000)
Investment in intangible and other assets (86,000) (48,000) (76,000)
Business acquisition   (1,711,000)  
Net cash used in investing activities (4,909,000) (10,203,000) (6,506,000)
Cash flows from financing activities:      
Proceeds from initial public offering, net of commissions and discounts     32,426,000
Proceeds from notes payable     1,500,000
Repayment of notes payable     (13,500,000)
Payment of debt issuance costs     (30,000)
Payment on debt extinguishment costs     (149,000)
Payment of line of credit costs   (10,000)  
Proceeds from issuance of common stock upon secondary offering 11,247,000    
Proceeds from exercise of stock options 454,000 550,000 55,000
Repurchases of common stock (6,718,000)    
Proceeds from exercise of warrants 71,000 988,000  
Proceeds from employee stock purchase plan 873,000 909,000 319,000
Net cash provided by financing activities 5,482,000 2,437,000 18,751,000
Increase (decrease) in cash, cash equivalents and restricted cash 14,265,000 (9,152,000) 15,632,000
Effect of exchange rate on cash and cash equivalents 7,000 (167,000) 70,000
Cash, cash equivalents and restricted cash at beginning of year 10,278,000 19,597,000 3,895,000
Cash, cash equivalents and restricted cash at end of year 24,550,000 10,278,000 19,597,000
Supplemental cash flow disclosures:      
Cash paid for income taxes 51,000 79,000  
Cash paid for interest     1,235,000
Supplemental disclosure of non-cash financing activities:      
Property and equipment purchases included in accounts payable 311,000 205,000 227,000
Estimated fair value of contingent consideration   750,000  
Conversion of convertible preferred stock into common stock     42,075,000
Reclassification of convertible preferred stock warrant liability into additional paid-in capital     5,711,000
Deferred offering costs included in other assets   249,000  
Issuance of warrants in connection with the issuance of notes payable     111,000
Initial Public Offering      
Cash flows from financing activities:      
Payments of offering costs     $ (1,870,000)
Secondary Offering      
Cash flows from financing activities:      
Payments of offering costs $ (445,000)    
Line of Credit      
Supplemental disclosure of non-cash financing activities:      
Deferred offering costs included in other assets   $ 91,000  

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