Goodwill And Intangible Assets (Summary Of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Beginning balance	$ 28,116	$ 26,448
Change in goodwill due to purchase of business		120
Foreign currency translation adjustment	(1,358)	1,548
Ending balance	26,758	28,116
Cinema [Member]
Goodwill [Line Items]
Beginning balance	22,892	21,224
Change in goodwill due to purchase of business		120
Foreign currency translation adjustment	(1,358)	1,548
Ending balance	21,534	22,892
Real Estate [Member]
Goodwill [Line Items]
Beginning balance	5,224	5,224
Ending balance	$ 5,224	$ 5,224