Note 17 - Segment Reporting - Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Assets	$ 36,720	$ 33,491
Operating Segments [Member] \| Seamap Marine Products [Member]
Assets	35,740	32,526
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Assets	$ 980	$ 965

Amount of asset recognized for present right to economic benefit.

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+ Details