Condensed Consolidated Statements of Income and Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Depreciation included in cost of revenues	$ 654	$ 446	$ 1,276	$ 827
Unrealized loss on investments, tax effect	(39)	0	(59)	0
Cost of Revenue [Member]
Allocated stock-based compensation expense	770	384	1,409	896
Selling and Marketing [Member]
Allocated stock-based compensation expense	5,529	3,535	10,596	7,058
Product Development [Member]
Allocated stock-based compensation expense	351	121	831	776
General and Administrative [Member]
Allocated stock-based compensation expense	$ 2,485	$ 1,972	$ 5,954	$ 3,882

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of tax expense (benefit), after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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