Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (3,298)	$ (6,112)
Balance at end of period	(607)	(3,298)	$ (6,112)
Tax (Benefit) Expense
Balance at beginning of period	(837)	(721)
Tax (Benefit) Expense	43	(116)
Balance at end of period	(794)	(837)	(721)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(2,461)	(5,391)
Minimum post retirement benefit plan adjustments	136	(371)
Foreign currency translation adjustment	(2,648)	(2,930)	(1,843)
Balance at end of period	187	(2,461)	(5,391)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(872)	(4,173)
Other Comprehensive Income (Loss), before Tax	2,512	3,301
Balance at end of period	1,640	(872)	(4,173)
Tax (Benefit) Expense
Tax (Benefit) Expense	0	0
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Foreign currency translation adjustment	2,512	3,301
Minimum post retirement benefit plan adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(2,426)	(1,939)
Other Comprehensive Income (Loss), before Tax	(179)	487
Balance at end of period	$ (2,247)	$ (2,426)	$ (1,939)