Schedule II Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance at Beginning of Period	$ 211	$ 233
Expense (Recovery)		3
Deductions		(25)
Foreign Currency Adjustment	1
Balance at End of Period	212	211
SEC Schedule, 12-09, Reserve, Warranty [Member]
Balance at Beginning of Period	334	346
Expense (Recovery)	32	243
Deductions	(131)	(255)
Foreign Currency Adjustment
Balance at End of Period	$ 235	$ 334