v3.21.1
Consolidated Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Cash flows from operating activities:      
Net income (loss) $ 1,225,000 $ 1,798,000 $ (2,725,000)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
Depreciation of property and equipment 5,399,000 4,894,000 3,856,000
Amortization of intangible assets 187,000 88,000 61,000
Impairment of property and equipment 234,000 0 686,000
Stock-based compensation 4,462,000 3,057,000 2,468,000
Loss on disposal of property and equipment 3,000   4,000
Provision for accounts receivable 74,000    
Changes in operating assets and liabilities:      
Accounts receivable and contract asset 1,953,000 1,383,000 (11,224,000)
Prepaid expenses and other assets (321,000) (192,000) (766,000)
Accounts payable (190,000) (243,000) (346,000)
Accrued expenses and other current liabilities 575,000 108,000 (246,000)
Deferred revenue (2,392,000) 2,799,000 6,846,000
Net cash provided by (used in) operating activities 11,209,000 13,692,000 (1,386,000)
Cash flows from investing activities:      
Purchase of property and equipment (4,059,000) (4,823,000) (8,444,000)
Investment in intangible and other assets (72,000) (86,000) (48,000)
Business acquisition, net of cash acquired (14,627,000)   (1,711,000)
Net cash used in investing activities (18,758,000) (4,909,000) (10,203,000)
Cash flows from financing activities:      
Payment of contingent consideration liability (347,000)    
Payment of line of credit costs (12,000)   (10,000)
Proceeds from issuance of common stock upon secondary offering   11,247,000  
Payments of secondary offering costs   (445,000)  
Proceeds from exercise of stock options 314,000 454,000 550,000
Repurchases of common stock (1,615,000) (6,718,000)  
Proceeds from exercise of warrants   71,000 988,000
Proceeds from employee stock purchase plan 704,000 873,000 909,000
Net cash provided by (used in) financing activities (956,000) 5,482,000 2,437,000
Increase (decrease) in cash, cash equivalents and restricted cash (8,505,000) 14,265,000 (9,152,000)
Effect of exchange rate on cash and cash equivalents (2,000) 7,000 (167,000)
Cash, cash equivalents and restricted cash at beginning of year 24,550,000 10,278,000 19,597,000
Cash, cash equivalents and restricted cash at end of year 16,043,000 24,550,000 10,278,000
Supplemental cash flow disclosures:      
Cash paid for income taxes   51,000 79,000
Supplemental disclosure of non-cash financing activities:      
Property and equipment purchases included in accounts payable 522,000 $ 311,000 205,000
Estimated fair value of contingent consideration 170,000   750,000
Fair value of common stock issued as consideration for business acquisition $ 2,000,000    
Deferred offering costs included in other assets     249,000
Line of Credit      
Supplemental disclosure of non-cash financing activities:      
Deferred offering costs included in other assets     $ 91,000

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