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Note 8 - Leases - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2024
Jan. 31, 2023
Weighted average remaining lease term, Operating leases (Year) 1 year 4 months 24 days 1 year 11 months 23 days
Weighted average discount rate, Operating leases 13.00% 13.00%
Operating cash flows from operating leases $ (831) $ (858)
Right-of-use assets obtained in exchange for lease liabilities, Operating leases $ 409 $ 819