Note 10 - Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Apr. 30, 2023	Jan. 31, 2023
Property and Equipment - net	$ 28,562	$ 26,518
Total finance lease liabilities	79	164
Operating Lease, Right-of-Use Asset	4,338	4,527
Operating lease liability short-term	823	912
Operating lease liability long-term	4,210	4,252
Total operating lease liabilities	5,033	5,164
Other Current Liabilities [Member]
Finance lease liability short-term	79	164
Operating lease liability short-term	823	912
Other Noncurrent Liabilities [Member]
Operating lease liability long-term	4,210	4,252
Finance Leases Assets [Member]
Property and Equipment - gross	825	1,161
Accumulated depreciation and amortization	(422)	(700)
Property and Equipment - net	$ 403	$ 461