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Note 10 - Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Jan. 31, 2021
Property and Equipment - net $ 26,223   $ 26,897
Finance lease liability short-term 262   300
Finance lease liability long-term 350   401
Total finance lease liabilities 612   701
Operating Lease, Right-of-Use Asset 12,178   13,384
Operating lease liability short-term 1,311   1,402
Operating lease liability long-term 12,185   13,174
Total operating lease liabilities 13,496   14,576
Financing cash outflows from finance leases 117 $ 105  
Operating cash outflows from finance leases 13 19  
Operating cash outflows from operating leases 501 $ 954  
Finance Leases Assets [Member]      
Property and Equipment - gross 1,061   879
Accumulated depreciation and amortization (311)   (96)
Property and Equipment - net $ 750   $ 783