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Note 6 - Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($)
$ in Thousands
Jan. 31, 2025
Jan. 31, 2024
Property, plant and equipment $ 81,038 $ 87,493
Accumulated depreciation and amortization (45,673) (49,873)
Property and Equipment - net 35,365 37,620
Finance lease liability short-term 75 113
Total finance lease liabilities 75 113
Operating Lease, Right-of-Use Asset 8,199 6,467
Operating lease liability short-term 1,071 914
Operating lease liability long-term 7,713 6,270
Total operating lease liabilities 8,784 7,184
Finance Leases Assets [Member]    
Property, plant and equipment 899 970
Accumulated depreciation and amortization (626) (536)
Property and Equipment - net $ 273 $ 434