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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	$ 64,277	$ 54,202	$ (9,740)
Other comprehensive income (loss)	(518)	(57)	189
End of the period	72,979	64,277	54,202
Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	230	287	98
Other comprehensive income (loss)	(518)	(57)	189
End of the period	(288)	230	287
Accumulated translation adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	41	178	165
Other comprehensive income (loss)	266	(137)	13
End of the period	307	41	178
Accumulated unrealized holding gains (losses) on available-for-sale securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning of the period	189	109	(67)
Other comprehensive income (loss)	(784)	80	176
End of the period	$ (595)	$ 189	$ 109

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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