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Note 6 - Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2021 | Jan. 31, 2020
Property, plant and equipment | $ 78,674 | $ 77,816
Accumulated depreciation and amortization | (51,777) | (49,187)
Property, plant and equipment, net of accumulated depreciation | 26,897 | 28,629
Finance lease liability short-term | 300 | 417
Finance lease liability long-term | 401 | 677
Total finance lease liabilities | 701 | 1,094
Operating Lease, Right-of-Use Asset | 13,384 | 11,475
Operating lease liability short-term | 1,402 | 1,040
Operating lease liability long-term | 13,174 | 11,214
Total operating lease liabilities | 14,576 | 12,254
Financing cash flows from finance leases | 432 | 287
Operating cash flows from finance leases | 69 | 58
Operating cash flows from operating leases | 3,097 | 2,287
Finance leases liabilities |  |
Operating leases liabilities | 3,255 |
Finance Leases Assets [Member] |  |
Property, plant and equipment | 879 | 1,696
Accumulated depreciation and amortization | (96) | (551)
Property, plant and equipment, net of accumulated depreciation | $ 783 | $ 1,145

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