Goodwill and Intangible Assets (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) Segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Goodwill and Intangible Assets [Abstract]
Loss on impairment	$ (4,302)	$ (5,464)
Number of reporting units | Segment	2
Number of operating segments | Segment	2
Goodwill [Roll Forward]
Net book value, beginning balance	$ 13,339
Acquisition	0
Dispositions	0
Goodwill impairment loss	0
Net book value, ending balance	13,339
Amortized Intangible Assets [Abstract]
Gross carrying amount	16,744		$ 16,744
Accumulated amortization	(6,936)		(6,265)
Impact of Impairment	(4,302)
Total	5,506		10,479
Amortization of definite-lived intangible assets	670	$ 570
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020	1,271
2021	1,213
2022	910
2023	640
2024	444
Thereafter	1,028
Total	5,506		10,479
Customer Relationships [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	11,730		11,730
Accumulated amortization	(4,584)		(4,079)
Impact of Impairment	(3,102)
Total	4,044		7,651
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	4,044		7,651
Trade Names [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	2,467		2,467
Accumulated amortization	(816)		(727)
Impact of Impairment	(778)
Total	873		1,740
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	873		1,740
Developed Technology [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	471		471
Accumulated amortization	(471)		(471)
Impact of Impairment	0
Total	0		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	0		0
Non-Controlling Customer Relationships [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	433		433
Accumulated amortization	(433)		(433)
Impact of Impairment	0
Total	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	949		949
Accumulated amortization	(267)		(217)
Impact of Impairment	(422)
Total	260		732
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	260		732
Alliance Agreement [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	527		527
Accumulated amortization	(198)		(171)
Impact of Impairment	0
Total	329		356
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	329		356
Others [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount	167		167
Accumulated amortization	(167)		(167)
Impact of Impairment	0
Total	0		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	0		$ 0
Performance Improvement Solutions [Member]
Goodwill [Roll Forward]
Net book value, beginning balance	4,908
Acquisition	0
Dispositions	0
Goodwill impairment loss	0
Net book value, ending balance	4,908
Nuclear Industry Training and Consulting [Member]
Goodwill [Roll Forward]
Net book value, beginning balance	8,431
Acquisition	0
Dispositions	0
Goodwill impairment loss	0
Net book value, ending balance	$ 8,431