Intangible Assets - Schedule of Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets eligible for amortization:
Accumulated Amortization	$ (5,955)	$ (5,820)
Unamortized intangible assets:
Goodwill, gross carrying amount	14,262	14,262
Total intangible assets, net	22,646	22,646
Total intangible assets, accumulated amortization	5,955	5,820
Customer lists
Assets eligible for amortization:
Gross Carrying Amount	4,778	4,778
Accumulated Amortization	(4,371)	(4,341)
Unamortized intangible assets:
Total intangible assets, accumulated amortization	4,371	4,341
Patents
Assets eligible for amortization:
Gross Carrying Amount	72	72
Accumulated Amortization	(29)	(28)
Unamortized intangible assets:
Total intangible assets, accumulated amortization	29	28
Software
Assets eligible for amortization:
Gross Carrying Amount	2,844	2,844
Accumulated Amortization	(1,197)	(1,104)
Unamortized intangible assets:
Total intangible assets, accumulated amortization	1,197	1,104
Trade Name
Assets eligible for amortization:
Gross Carrying Amount	190	190
Accumulated Amortization	(25)	(22)
Unamortized intangible assets:
Total intangible assets, accumulated amortization	25	22
Other
Assets eligible for amortization:
Gross Carrying Amount	500	500
Accumulated Amortization	(333)	(325)
Unamortized intangible assets:
Total intangible assets, accumulated amortization	$ 333	$ 325