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Note 13 - Income Taxes - Deferred Income Taxes (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Deferred tax assets: |  |
Inventory (excluding LIFO reserve) | $ 1,622 | $ 1,690
Net operating loss and tax credit carryforwards | 2,498 | 3,520
Allowance for doubtful accounts | 504 | 419
Accrued expenses | 6,087 | 5,684
Other | 232 | 143
Deferred tax assets before valuation allowance | 10,943 | 11,456
Valuation allowance | (2,055) | (2,379)
Total deferred tax assets | 8,888 | 9,077
Deferred tax liabilities: |  |
LIFO reserve | (3,870) | (3,958)
Property and equipment | (13,625) | (11,363)
Intangibles | (4,858) | (5,901)
Total deferred tax liabilities | (22,353) | (21,222)
Deferred tax liabilities, net | $ (13,465) | $ (12,145)

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