Note 6 - Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2024	Jan. 31, 2023
For the year ended January 31, 2025, operating leases	$ 1,871
For the year ended January 31, 2025, finance leases	39
For the year ended January 31, 2026, operating leases	1,714
For the year ended January 31, 2026, finance leases	39
For the year ended January 31, 2027, operating leases	1,701
For the year ended January 31, 2027, finance leases	39
For the year ended January 31, 2028, operating leases	1,656
For the year ended January 31, 2028, finance leases	10
For the year ended January 31, 2029, operating leases	1,286
For the year ended January 31, 2029, finance leases	0
Thereafter, operating leases	7,481
Thereafter, finance leases	0
Total lease payments, operating leases	15,709
Total lease payments, finance leases	127
Less: amount representing interest, operating leases	(8,525)
Less: amount representing interest, finance leases	(14)
Total lease liabilities, operating leases	7,184	$ 5,164
Total lease liabilities, finance leases	$ 113	$ 164