Note 14 - Business Segments (Tables)

6 Months Ended

Dec. 31, 2023

Notes Tables

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

	Six Months			Operating
	Ended	Net		Income /			Total		Depr. And		Capital
	Dec. 31,	Revenue		(Loss)			Assets		Amort.		Expenditures
Manufacturing	2023	$	7,675	$	149		$	19,242	$	214	$	38
	2022	$	8,629	$	477		$	15,345	$	230	$	15
Testing Services	2023		9,810		(280	)		22,690		2,507		120
	2022		12,012		1,129			27,757		1,875		3,967
Distribution	2023		4,670		646			1,976		-		-
	2022		3,676		482			1,437		-		-
Real Estate	2023		13		(53	)		2,502		36		-
	2022		12		(42	)		1,580		38		-
Corporate & Unallocated	2023		-		214			188		27		-
	2022		-		90			77		-		12
Total Company	2023	$	22,168	$	676		$	46,598	$	2,784	$	158
	2022	$	24,329	$	2,136		$	46,196	$	2,143	$	3,994

	Three Months			Operating
	Ended	Net		Income /			Total		Depr. And		Capital
	Dec. 31,	Revenue		(Loss)			Assets		Amort.		Expenditures
Manufacturing	2023	$	4,790	$	191		$	19,242	$	101	$	19
	2022	$	5,044	$	301		$	15,345	$	99	$	15
Testing Services	2023		4,646		(152	)		22,690		1,181		62
	2022		5,648		547			27,757		1,111		2,811
Distribution	2023		2,760		401			1,976		-		-
	2022		1,694		217			1,437		-		-
Real Estate	2023		6		(27	)		2,502		18		-
	2022		4		(28	)		1,580		20		-
Corporate & Unallocated	2023				264			188		15		-
	2022		-		32			77		6		12
Total Company	2023	$	12,202	$	677		$	46,598	$	1,315	$	81
	2022	$	12,390	$	1,069		$	46,196	$	1,236	$	2,838