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Note 6 - Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands | Jan. 31, 2023 | Jan. 31, 2022
--- | --- | ---
Property, plant and equipment | $ 82,930 | $ 79,223
Accumulated depreciation and amortization | (56,412) | (54,467)
Property, plant and equipment, net of accumulated depreciation | 26,518 | 24,756
Finance lease liability long-term | 0 | 173
Total finance lease liabilities | 164 | 530
Operating Lease, Right-of-Use Asset | 4,527 | 11,213
Operating lease liability short-term | 912 | 1,496
Operating lease liability long-term | 4,252 | 11,270
Total operating lease liabilities | 5,164 | 12,766
Other Current Liabilities [Member] |  |
Finance lease liability short-term | 164 | 357
Finance Leases Assets [Member] |  |
Property, plant and equipment | 1,161 | 1,221
Accumulated depreciation and amortization | (700) | (490)
Property, plant and equipment, net of accumulated depreciation | $ 461 | $ 731

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