Note 10 - Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2023	Jan. 31, 2023
For the nine months ending January 31, 2024, operating leases	$ 1,108
For the nine months ending January 31, 2024, finance leases, finance leases	81
For the year ended January 31, 2024, operating leases	694
For the year ended January 31, 2024, finance leases	0
For the year ended January 31, 2025, operating leases	487
For the year ended January 31, 2025, finance leases	0
For the year ended January 31, 2026, operating leases	453
For the year ended January 31, 2026	0
For the year ended January 31, 2027, operating leases	415
For the year ended January 31, 2027, finance leases	0
For the year ended January 31, 2028, operating leases	378
For the year ended January 31, 2028, finance leases	0
Thereafter, operating leases	7,147
Thereafter, finance leases	0
Total lease payments, operating leases	10,682
Total lease payments, finance leases	81
Less: amount representing interest, operating leases	(5,649)
Less: amount representing interest, finance leases	(2)
Total lease liabilities, operating leases	5,033	$ 5,164
Total lease liabilities, finance leases	$ 79	$ 164