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Note 3 - Leases (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2022
May 01, 2021
Operating Lease, Weighted Average Remaining Lease Term (Year) 4 years 6 months 4 years 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent 6.00%  
Operating Lease, Impairment Loss $ 0 $ 0
Lessee, Operating Lease, Lease Not yet Commenced, Amount $ 2,700  
Minimum [Member]    
Lessee, Operating Lease, Term of Contract (Year) 5 years  
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract (Year) 1 year  
Maximum [Member]    
Lessee, Operating Lease, Term of Contract (Year) 10 years  
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract (Year) 10 years