Note 12 - Segment Reporting (Tables)

3 Months Ended

Apr. 30, 2025

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Three Months Ended April 30,
	2025								2024
	Seamap Marine Products		Corporate Expenses			Consolidated			Seamap Marine Products		Corporate Expenses			Consolidated
Revenues	$	7,902	$	—		$	7,902		$	9,678	$	—		$	9,678
Cost of sales		4,571		—			4,571			5,460		—			5,460
Selling, general and administrative		1,676		1,708			3,384			1,496		1,263			2,759
Research and development		302		78			380			383		79			462
Depreciation and amortization expense		221		4			225			263		4			267
Operating income (loss)		1,132		(1,790	)		(658	)		2,076		(1,346	)		730
Capital expenditures		211		26			237			64		2			66

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	Three Months Ended April 30,
	2025			2024
Seamap Marine Products		1,132			2,076
Corporate Expenses		(1,790	)		(1,346	)
Operating (loss) income		(658	)		730
Other income		(18	)		469
Income before income taxes		(676	)		1,199

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	As of April 30,
	2025		2024
Seamap Marine Products	$	35,574	$	34,065
Corporate		652		798
Total Assets	$	36,226	$	34,863