Schedule II - Valuation and Qualifying Accounts (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reductions credited to income tax expense	$ (638)
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Allowance, Beginning Balance	3,757	$ 3,592	$ 4,366
Additions charged to income tax expense	346	743	953
Reductions charged to other comprehensive income	(15)	24	(7)
Reductions credited to income tax expense	(241)	(600)	(1,683)
Changes due to foreign currency translation	22	(2)	(37)
Allowance, Ending Balance	$ 3,869	$ 3,757	$ 3,592