Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Abstract]
Loss carryforwards	$ 7,030	$ 8,266
Finance and operating leases	7,497	1,824
Excess interest carryforward	4,544	4,786
Stock compensation	2,153	2,138
Accrued expenses	1,890	2,723
Deferred compensation	1,107	778
Property	1,147
Credit carryforwards	710	939
UNICAP	425	404
Inventory and deferred preservation costs write-downs	299	289
Tax benefit of tax reserves	52	217
Other	1,659	310
Less valuation allowance	(3,218)	(3,372)
Total deferred tax assets	25,295	19,302
Intangible assets	(35,555)	(38,414)
Finance and operating leases	(7,048)
Debt costs	(1,917)	(2,331)
Property	(28)	(1,060)
Prepaid items	(494)	(477)
Other	(616)	(176)
Total deferred tax liabilities	(45,658)	(42,458)
Total net deferred tax liabilities	$ (20,363)	$ (23,156)