Goodwill And Intangible Assets (Changes In The Carrying Value Of Goodwill) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Goodwill [Line Items]
Gross carrying value, Beginning	$ 13,722
Currency translation	(656)
Gross carrying value, Ending	13,066
Accumulated impairment losses, Beginning	(3,375)
Accumulated impairment losses, Ending	(3,375)
Net carrying value	9,691	$ 10,347
Canada [Member]
Goodwill [Line Items]
Gross carrying value, Beginning	7,402
Currency translation	(69)
Gross carrying value, Ending	7,333
Accumulated impairment losses, Beginning	(3,375)
Accumulated impairment losses, Ending	(3,375)
Net carrying value	3,958	4,027
Poland [Member]
Goodwill [Line Items]
Gross carrying value, Beginning	6,320
Currency translation	(587)
Gross carrying value, Ending	5,733
Accumulated impairment losses, Beginning
Accumulated impairment losses, Ending
Net carrying value	$ 5,733	$ 6,320