Income Taxes (Schedule Of Components Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	[1]
Income Taxes [Abstract]
Net operating loss carry forwards	$ 11,940	$ 13,286
Alternative minimum tax credit carry-forwards	1,690	540
Compensation and employee benefits	6,221	5,531
Deferred revenue	5,486	6,592
Accrued expenses	7,134	7,971
Accrued taxes	3,381	3,285
Land and property	12,857	11,264
Other	995	1,058
Total Deferred Tax Assets	49,704	49,527
Intangibles	(1,482)	(2,321)
Cancellation of indebtedness	(1,559)	(2,396)
Notes receivable	(7,403)	(8,696)
Total Deferred Tax Liabilities	(10,444)	(13,413)
Net deferred tax assets before valuation allowance	39,260	36,114
Valuation allowance	(10,593)	(11,530)
Net deferred tax asset	$ 28,667	$ 24,584

[1] December 31, 2015 balances included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes)