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CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash flows from operating activities    
Net income $ 2,755 $ 3,341
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation expense 2,664 2,697
Amortization of intangible assets 3,532 4,011
Deferred tax expense from stock issuances 969 205
Write-off of deferred financing costs 167  
Amortization of deferred financing costs 403 610
Stock-based compensation 8,891 9,589
Change in fair value of contingent consideration 419  
Provisions for accounts receivable 817 75
Deferred tax (benefit) provision (139) 885
Loss on disposal of fixed assets   3
Changes in operating assets and liabilities:    
Accounts receivable and contract assets 10,065 (1,363)
Prepaid expense and other assets (1,689) 1,488
Accounts payable 2,070 243
Contract liabilities (93) (1,253)
Accrued expenses 13,140 (94)
Net cash provided by operating activities 43,971 20,437
Cash flows from investing activities    
Purchase of furniture, fixtures and equipment (1,181) (1,922)
Neuralify acquisition (Note 4) (2,317)  
Net cash used in investing activities (3,498) (1,922)
Cash flows from financing activities    
Principal payments on borrowings, net (8,088) (12,250)
Payment of contingent consideration   (865)
Proceeds from issuance of employee stock purchase plan shares 516 703
Debt financing costs (934)  
Payments related to tax withholding for stock-based compensation (2,023) (3,094)
Treasury shares repurchased (5,166) (3,428)
Net cash used in financing activities (15,695) (18,934)
Effect of exchange rate changes on cash 806 (65)
Net increase (decrease) in cash, cash equivalents, and restricted cash 25,584 (484)
Cash, cash equivalents, and restricted cash, beginning of period 18,241 18,725
Cash, cash equivalents, and restricted cash, end of period 43,825 18,241
Cash paid for:    
Interest 3,114 5,690
Taxes, net of refunds 2,536 503
Non-cash investing and financing activities:    
Issuance of treasury stock for vested restricted stock awards $ 6,359 $ 1,362