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Note 8 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred tax assets: |  |
Inventories | $ 0 | $ 646
Accrued liabilities | 1,900 | 1,484
Postretirement health benefits obligation | 6,724 | 6,815
Pension | 1,745 | 1,688
Lease liabilities | 272 | 390
Other | 1,531 | 1,434
Total deferred tax assets | 12,172 | 12,457
Valuation allowance | (481) | (567)
Net deferred tax assets | 11,691 | 11,890
Deferred tax liabilities: |  |
Depreciation and amortization | (9,817) | (9,536)
Leases – right of use assets | (269) | (388)
Foreign withholding tax | 0 | (100)
Inventories | (628) | 0
Total deferred tax liabilities | (10,714) | (10,024)
Net deferred tax assets | $ 977 | $ 1,866

X
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