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Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Revenues $ 118,904 $ 102,100
Cost of revenues 51,252 44,059
Gross profit 67,652 58,041
Sales and marketing expenses 24,642 19,916
General and administrative expenses 24,305 23,509
Research and development expenses 10,799 8,685
Amortization of intangible assets 5,840 5,710
Total operating expenses 65,586 57,820
Operating income 2,066 221
Other expense:    
Interest expense (1,540) (4,831)
Debt extinguishment and related costs 0 (1,876)
Other, net (666) (806)
Total other expense (2,206) (7,513)
Loss before income taxes (140) (7,292)
Total income tax expense (benefit) 148 518
Net loss $ (288) $ (7,810)
Loss per share:    
Basic and diluted loss per common share (in dollars per share) $ (0.01) $ (0.20)
Weighted-average common shares:    
Basic and diluted (in shares) 40,343 38,640