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Note 8 - Income Taxes - Deferred Income Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Mar. 31, 2019
Future tax credits $ 5,581 $ 5,124
Inventory valuation 163
Restructuring reserve 220 1,071
Employee benefits 2,219 2,030
Insurance 616 312
Other comprehensive loss 26,562 6,250
Interest 24 12
Future federal tax credits 654
Prepaid revenue 565 528
Other 186 298
Net operating loss and other tax attribute carryovers 2,233 5,628
Total assets 38,369 21,907
Property basis and depreciation difference 12,664 13,049
Inventory valuation 534
Intangibles 208 286
Income from equity investment 1,239
Right of use assets 4,373
Pension 7,540 1,633
Total liabilities 26,024 15,502
Valuation allowance - non-current 4,473 3,988
Net deferred income tax asset $ 7,872 $ 2,417