Note 18 - Business Segments (Tables)

12 Months Ended

Jun. 30, 2023

Notes Tables

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

				Operating
	Year Ended			Income /			Total		Depr. And		Capital
	Jun. 30,	Revenue		(Loss)			Assets		Amort.		Expenditures
Manufacturing	2023	$	13,827	$	(58	)	$	13,864	$	481	$	143
	2022	$	13,526	$	275		$	14,652	$	417	$	116
Testing Services	2023		23,130		1,648			24,559		4,532		4,329
	2022		19,477		1,313			25,148		2,577		1,351
Distribution	2023		6,270		816			1,275		-		-
	2022		11,037		1,525			1,740		-		-
Real Estate	2023		23		(98	)		1,988		75		-
	2022		25		(119	)		1,608		81		1
Corporate & Unallocated	2023		-		(80	)		500		-		26
	2022		-		(641	)		273		-		-
Total Company	2023	$	43,250	$	2,228		$	42,186	$	5,088	$	4,498
	2022	$	44,065	$	2,353		$	43,421	$	3,075	$	1,468