Note 6 - Leases - Weighted-average Lease Terms and Discount Rates (Details)	Jan. 31, 2024	Jan. 31, 2023
Finance leases (Year)	3 years 3 months 18 days	6 months
Operating leases (Year)	13 years 8 months 12 days	19 years 7 months 6 days
Finance leases	6.80%	12.00%
Operating leases	9.30%	8.20%