BUSINESS SEGMENTS (Tables)

12 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Business segments

	Year			Operating					Depr.
	Ended	Net		Income			Total		and		Capital
	June 30,	Revenue		(Loss)			Assets		Amort.		Expenditures
Manufacturing	2021	$	13,151	$	376		$	13,622	$	411	$	350
	2020	$	11,605	$	(326	)	$	9,807	$	346	$	134
Testing Services	2021		13,846		(997	)		21,099		2,570		762
	2020		14,840		(1,040	)		21,086		2,578		834
Distribution	2021		5,437		657			1,156		4		-
	2020		7,958		751			875		100		-
Real Estate	2021		28		(116	)		2,070		74
	2020		62		(97	)		3,587		76
Fabrication	2021		-		-			-		-		-
Services*	2020		-		-			27		-		-
Corporate &	2021		-		(10	)		359		-
Unallocated	2020 (Restated)		-		(235	)		278		-
Total Company	2021	$	32,462	$	(70	)	$	38,306	$	3,059	$	1,112
	2020	$	34,465	$	(947	)	$	35,660	$	3,100	$	1,017