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Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Income Taxes [Abstract] |  |
Allowance for bad debts | $ 101 | $ 208
Inventory and deferred preservation costs write-downs | 570 | 708
Investment in equity securities | 36 | 58
Property |  | 1,780
Intangible assets | 1,306 | 2,034
Accrued expenses | 4,719 | 4,215
Loss carryforwards | 8,369 | 8,760
Credit carryforwards | 771 | 1,001
Stock compensation | 2,213 | 3,678
Transaction Costs |  | 122
Deferred compensation | 1,010 | 973
UNICAP | 390 | 371
Tax benefit of tax reserves | 229 | 333
Other | 402 | 409
Less valuation allowance | (2,469) | (2,157)
Total deferred tax assets | 17,647 | 22,493
Prepaid items | (285) | (436)
Intangible assets | (43,647) | (21,665)
Property | (1,632) |
Other | (904) | (399)
Total deferred tax liabilities | (46,468) | (22,500)
Total net deferred tax liabilities | $ (28,821) | $ (7)

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