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Note 2 - Significant Accounting Policies - Long-Lived Assets (Details) - USD ($) $ in Thousands	Jan. 31, 2023	Jan. 31, 2022
Property, plant and equipment	$ 82,930	$ 79,223
Less accumulated depreciation	56,412	54,467
Property, plant and equipment, net of accumulated depreciation	26,518	24,756
Land, Buildings and Improvements [Member]
Property, plant and equipment	22,276	22,748
Machinery and Equipment [Member]
Property, plant and equipment	54,200	50,534
Furniture and Fixtures [Member]
Property, plant and equipment	3,727	3,941
Transportation Equipment [Member]
Property, plant and equipment	$ 2,727	$ 2,000

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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