Income Taxes (Schedule Of Components Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Abstract]
Net operating loss carry-forwards	$ 18,917	$ 21,498
Foreign Tax Credit	3,743	3,743
Compensation and employee benefits	3,539	3,255
Deferred revenue	2,642	2,552
Accrued expenses	8,646	9,691
Accrued taxes		2,313
Lease Obligations	69,342	64,859
Land and property	958	4,842
Total Deferred Tax Assets	107,787	112,753
Lease liabilities	(63,293)	(60,886)
Accrued taxes	523
Intangibles	(396)	(429)
Other	(461)	(1,020)
Total Deferred Tax Liabilities	(64,673)	(62,335)
Net deferred tax assets before valuation allowance	43,114	50,418
Valuation allowance	(40,894)	(47,056)
Net deferred tax asset	$ 2,220	$ 3,362