Note 3 - Segment Information (Tables)

9 Months Ended

Sep. 30, 2026

Notes Tables

Segment Reporting [Table Text Block]

	Three Months Ended September 30, 2026
	Electronic Instruments			Merchant Investment		Corporate			Consolidated
Revenues:
Net sales	$	720		$	—	$	—		$	720
Net investment income		—			291		453			744
Net gains		—			—		—			—
Total revenues		720			291		453			1,464
Less:
Manufacturing cost of sales		491			—		—			491
Engineering		91			—		—			91
Commissions		3			—		—			3
Sales and marketing		55			—		—			55
Accounting		—			—		65			65
Compensation		59			—		265			324
Corporate allocations (a)		12			168		(180	)		—
Other segment items (b)		73			1		336			410
Engineering, selling and administrative		293			169		486			948
Total expenses		784			169		486			1,439
Segment (loss) profit	$	(64	)	$	122	$	(33	)	$	25
Reconciliation of Segment profit (loss) to Income (loss) before income taxes
Adjustments and reconciling items										—
Income before income taxes									$	25

	Three Months Ended September 30, 2025
	Electronic Instruments		Merchant Investment		Corporate			Consolidated
Revenues:
Net sales	$	661	$	—	$	—		$	661
Net investment income		—		274		168			442
Net gains		—		—		5			5
Total revenues		661		274		173			1,108
Less:
Manufacturing cost of sales		312		—		—			312
Engineering		74		—		—			74
Commissions		12		—		—			12
Sales and marketing		47		—		—			47
Accounting		—		—		49			49
Compensation		58		—		74			132
Corporate allocations (a)		13		145		(158	)		—
Other segment items (b)		41		—		321			362
Engineering, selling and administrative		245		145		286			676
Total expenses		557		145		286			988
Segment profit (loss)	$	104	$	129	$	(113	)	$	120
Reconciliation of Segment profit (loss) to Income (loss) before income taxes
Adjustments and reconciling items									—
Income before income taxes								$	120

	Nine Months Ended September 30, 2026
	Electronic Instruments			Merchant Investment		Corporate			Consolidated
Revenues:
Net sales	$	2,152		$	—	$	—		$	2,152
Net investment income		—			753		792			1,545
Net gains		—			—		5			5
Total revenues		2,152			753		797			3,702
Less:
Manufacturing cost of sales		1,206			—		—			1,206
Engineering		258			—		—			258
Commissions		46			—		—			46
Sales and marketing		177			—		—			177
Accounting		—			—		234			234
Compensation		173			—		1,415			1,588
Corporate allocations (a)		40			461		(501	)		—
Other segment items (b)		271			35		1,094			1,400
Engineering, selling and administrative		965			496		2,242			3,703
Total expenses		2,171			496		2,242			4,909
Segment (loss) profit	$	(19	)	$	257	$	(1,445	)	$	(1,207	)
Reconciliation of Segment profit (loss) to Income (loss) before income taxes
Adjustments and reconciling items										—
Loss before income taxes									$	(1,207	)

	Nine Months Ended September 30, 2025
	Electronic Instruments		Merchant Investment		Corporate			Consolidated
Revenues:
Net sales	$	1,650	$	—	$	—		$	1,650
Net investment income		—		783		504			1,287
Net gains		—		—		13			13
Total revenues		1,650		783		517			2,950
Less:
Manufacturing cost of sales		760		—		—			760
Engineering		188		—		—			188
Commissions		52		—		—			52
Sales and marketing		139		—		—			139
Accounting		—		—		174			174
Compensation		166		—		423			589
Corporate allocations (a)		35		331		(366	)		—
Other segment items (b)		119		22		777			918
Engineering, selling and administrative		699		353		1,008			2,060
Total expenses		1,459		353		1,008			2,820
Segment profit (loss)	$	191	$	430	$	(491	)	$	130
Reconciliation of Segment profit (loss) to Income (loss) before income taxes
Adjustments and reconciling items									—
Income before income taxes								$	130

Segment Reporting, Reconciliation of Other Item by Segment to Consolidated [Table Text Block]

	Three Months Ended September 30, 2026
	Electronic Instruments			Merchant Investment		Corporate			Total			Adjustments and Reconciling Items		Consolidated
Interest revenue (a)	$	—		$	291	$	453		$	744		$	—	$	744
Amortization (b)		(4	)		—		—			(4	)		—		(4	)
Other significant non-cash items:
Stock-based compensation (c)		—			—		(111	)		(111	)		—		(111	)
Capital expenditures		—			—		(7	)		(7	)		—		(7	)

	Three Months Ended September 30, 2025
	Electronic Instruments			Merchant Investment		Corporate			Total			Adjustments and Reconciling Items		Consolidated
Interest revenue (a)	$	—		$	274	$	168		$	442		$	—	$	442
Amortization (b)		(5	)		—		—			(5	)		—		(5	)
Other significant non-cash items:
Stock-based compensation (c)		—			—		(18	)		(18	)		—		(18	)
Capital expenditures		—			—		—			—			—		—

	Nine Months Ended September 30, 2026
	Electronic Instruments			Merchant Investment		Corporate			Total			Adjustments and Reconciling Items		Consolidated
Interest revenue (a)	$	—		$	753	$	792		$	1,545		$	—	$	1,545
Amortization (b)		(15	)		—		—			(15	)		—		(15	)
Other significant non-cash items:
Stock-based compensation (c)		—			—		(959	)		(959	)		—		(959	)
Capital expenditures		—			—		(7	)		(7	)		—		(7	)

	Nine Months Ended September 30, 2025
	Electronic Instruments			Merchant Investment		Corporate			Total			Adjustments and Reconciling Items		Consolidated
Interest revenue (a)	$	—		$	783	$	504		$	1,287		$	—	$	1,287
Amortization (b)		(16	)		—		—			(16	)		—		(16	)
Other significant non-cash items:
Stock-based compensation (c)		—			—		(44	)		(44	)		—		(44	)
Capital expenditures		—			—		—			—			—		—

Segment Reporting, Reconciliation of Asset by Segment to Consolidated [Table Text Block]

	September 30, 2026
	Electronic Instruments		Merchant Investment		Corporate		Total		Adjustments and Reconciling Items		Consolidated
Total assets	$	1,976	$	28,991	$	61,005	$	91,972	$	—	$	91,972

	December 31, 2025
	Electronic Instruments		Merchant Investment		Corporate		Total		Adjustments and Reconciling Items		Consolidated
Total assets	$	1,237	$	25,768	$	19,771	$	46,776	$	—	$	46,776