Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Leases, Commitments and Contingencies (Details Textual)

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Note 6 - Leases, Commitments and Contingencies (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Jan. 31, 2024
Operating Lease, Weighted Average Discount Rate, Percent 5.00%   5.70%
Operating Lease, Weighted Average Remaining Lease Term (Year) 6 years 1 month 6 days    
Lease, Cost $ 900 $ 1,400  
Lease Payments 1,200 $ 1,300  
Legal Proceedings and Claims [Member]      
Loss Contingency Accrual, Ending Balance 0    
Indemnifications or Commitments [Member]      
Loss Contingency Accrual, Ending Balance 0    
Loss Contingency, Loss in Period $ 0    
Minimum [Member]      
Lessee, Operating Lease, Remaining Lease Term (Year) 1 year    
Maximum [Member]      
Lessee, Operating Lease, Remaining Lease Term (Year) 10 years