Acquisitions - Pro forma information (Details) - Tactic Knowledge Inc. and Daxx Web Industries B.V ("Daxx") - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Revenue	$ 219,312	$ 149,219
Net loss	$ (5,910)	$ (10,792)
Diluted loss per share (in usd per share)	$ (0.10)	$ (0.24)

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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