Note 7 - Leases - Future Minimum Payments (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Jan. 31, 2019
Operating leases, 2020		$ 2,516
Capital leases, 2020		241
Operating leases, 2021		2,193
Capital leases, 2021	$ 290	240
Operating leases, 2022		2,149
Capital leases, 2022	247	82
Operating leases, 2023		2,110
Capital leases, 2023	141	21
Operating leases, 2024		1,979
Capital leases, 2024
Operating leases, Thereafter		8,997
Capital leases, Subtotal		584
Capital leases, Less Amount representing interest		(48)
Operating leases, Future minimum lease payments		19,944
Capital leases, Future minimum lease payments		$ 536