Note 17 - Segment Reporting - Long-Lived Assets by Geographic Areas (Details) - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Property, Plant, Equipment, and Operating Right-of-Use Assets	$ 2,210	$ 2,142
UNITED KINGDOM
Property, Plant, Equipment, and Operating Right-of-Use Assets	245	260
SINGAPORE
Property, Plant, Equipment, and Operating Right-of-Use Assets	711	338
MALAYSIA
Property, Plant, Equipment, and Operating Right-of-Use Assets	391	735
Non-US [Member]
Property, Plant, Equipment, and Operating Right-of-Use Assets	1,347	1,333
UNITED STATES
Property, Plant, Equipment, and Operating Right-of-Use Assets	$ 863	$ 809