Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Goodwill, Impaired [Abstract]
Goodwill	$ 16,709		$ 16,709
Accumulated Impairment	(10,410)		(10,410)
Net	6,299		6,299
Amortized Intangible Assets [Abstract]
Gross carrying amount	12,442		12,442
Accumulated amortization	(10,452)		(10,291)
Impairment	$ (464)		(464)
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]	Intangible assets, net
Net	$ 1,526		1,687
Amortization of intangible assets	161	$ 260
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2023 remainder	348
2024	332
2025	255
2026	204
2027	169
Thereafter	218
Total	1,526		1,687
Engineering [Member]
Goodwill, Impaired [Abstract]
Goodwill	8,278		8,278
Accumulated Impairment	(3,370)		(3,370)
Net	4,908		4,908
Workforce Solutions [Member]
Goodwill, Impaired [Abstract]
Goodwill	8,431		8,431
Accumulated Impairment	(7,040)		(7,040)
Net	1,391		1,391
Customer Relationships [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	8,628		8,628
Accumulated amortization	(7,154)		(7,050)
Impairment	(464)		(464)
Net	1,010		1,114
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	1,010		1,114
Trade Names [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	1,689		1,689
Accumulated amortization	(1,218)		(1,196)
Impairment	0		0
Net	471		493
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	471		493
Developed Technology [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	471		471
Accumulated amortization	(471)		(471)
Impairment	0		0
Net	0		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	0		0
Non-Contractual Customer Relationships [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	433		433
Accumulated amortization	(433)		(433)
Impairment	0		0
Net	0		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	0		0
Noncompete Agreement [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	527		527
Accumulated amortization	(495)		(486)
Impairment	0		0
Net	32		41
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	32		41
Alliance Agreement [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	527		527
Accumulated amortization	(514)		(488)
Impairment	0		0
Net	13		39
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	13		39
Others [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	167		167
Accumulated amortization	(167)		(167)
Impairment	0		0
Net	0		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	$ 0		$ 0