Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Allowance for bad debts	$ 142	$ 853
Inventory and deferred preservation costs write-downs	536	873
Investment in equity securities	58	1,913
Property	2,987	2,934
Intangible assets	591	400
Accrued expenses	3,276	3,864
Loss carryforwards	12,262	14,141
Credit carryforwards	616	635
Stock compensation	2,546	2,367
Transaction Costs	1,048
Other	1,448	1,402
Less valuation allowance	(2,109)	(2,145)
Total deferred tax assets	23,401	27,237
Deferred tax liabilities:
Prepaid items	(471)	(420)
Intangible assets	(4,401)	(4,652)
Other	(341)	(296)
Total deferred tax liabilities	(5,213)	(5,368)
Total net deferred tax assets	$ 18,188	$ 21,869