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Note 10 - Income Taxes - Deferred Income Tax Assets (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Temporary differences: |  |
Property and equipment | $ (920,000) | $ (993,000)
Intangible assets | (11,000) | (10,000)
Inventory reserve | 32,000 | 79,000
Accrued expenses and inventory | 191,000 | 216,000
Basis difference in investments | 0 | 35,000
Foreign exchange | 12,000 | 11,000
AMT/Foreign tax credits | 128,000 | 42,000
State income taxes | (196,000) | (171,000)
Net deferred income tax liabilities | $ (764,000) | $ (791,000)

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax and foreign tax credit carryforwards. + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities classified as current. + References No definition available. + Details
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- Definition Gross amount of noncurrent deferred tax liabilities, which result from applying the applicable tax rate to taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. + References No definition available. + Details
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