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Note 8 - Income Taxes - Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Mar. 31, 2025
--- | --- | ---
Future tax credits | $ 2,348 | $ 3,719
Inventory valuation | 6,988 | 7,294
Employee benefits | 3,509 | 3,108
Insurance | 560 | 878
State depreciation basis differences | 2,896 | 3,152
Operating leases | 228 | 128
Intangibles | 0 | 2,994
Pension and post-retirement benefits | 13 | 2,877
Interest | 19 | 34
Business interest limitation | 0 | 3,194
Deferred revenue | 100 | 164
Net operating loss and other tax attribute carryovers | 132 | 278
Other | 326 | 467
Total assets | 17,119 | 28,287
Valuation allowance - noncurrent | (2,328) | (3,719)
Total deferred income tax assets, net | 14,791 | 24,568
Property basis and depreciation difference | 29,853 | 27,537
Intangibles | 379 | 0
Inventory reserve | 6,558 | 5,200
Right-of-use assets | 705 | 2,236
Pension | 26,798 | 21,587
Other comprehensive income | 158 | 290
Total liabilities | 64,451 | 56,850
Deferred income tax liability, net | $ (49,660) | $ (32,282)

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- Definition Amount of deferred tax liability attributable to taxable temporary differences. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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