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Discontinued Operations - Summary of Operating Results of Discontinued Operations Reflected on Consolidated Statement of Operations (Details) - Discontinued Operations, Held-for-sale - CES - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disposal Group Including Discontinued Operation Revenue [Abstract]
Revenue	$ 7,400	$ 6,239
Cost of revenue	(5,571)	(4,097)
Selling, general, and administrative	(2,417)	(2,077)
Depreciation and amortization	(60)	(152)
Other income (expense)	(103)	28
Goodwill impairment	(1,702)	0
Pre-tax income (loss) from continuing operations	(2,453)	(59)
Provision for (benefit from) income tax	(23)	0
Net income (loss) from discontinued operations	$ (2,430)	$ (59)

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