BUSINESS SEGMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Net revenue	$ 8,962	$ 9,690	$ 18,785	$ 19,735
Operating income (loss)	(173)	227	49	350
Total assets	38,455	36,895	38,455	36,895
Depreciation and amortization	791	590	1,576	1,145
Capital expenditures	205	1,083	744	2,297
Manufacturing
Net revenue	3,045	3,352	6,362	6,989
Operating income (loss)	(87)	76	(99)	183
Total assets	10,542	8,835	10,542	8,835
Depreciation and amortization	110	29	196	58
Capital expenditures	16	0	35	1
Testing Services
Net revenue	3,887	4,393	8,277	8,830
Operating income (loss)	(161)	21	(93)	(117)
Total assets	23,314	23,750	23,314	23,750
Depreciation and amortization	663	547	1,344	1,059
Capital expenditures	189	1,083	709	2,296
Distribution
Net revenue	2,014	1,916	4,113	3,860
Operating income (loss)	188	170	392	342
Total assets	802	759	802	759
Depreciation and amortization	1	0	2	0
Capital expenditures	0	0	0	0
Real Estate
Net revenue	16	29	33	56
Operating income (loss)	(35)	(5)	(52)	(17)
Total assets	3,650	3,449	3,650	3,449
Depreciation and amortization	17	14	34	28
Capital expenditures	0	0	0	0
Fabrication Services
Net revenue	0	0	0	0
Operating income (loss)	0	0	0	0
Total assets	27	26	27	26
Depreciation and amortization	0	0	0	0
Capital expenditures	0	0	0	0
Corporate And Unallocated
Net revenue	0	0	0	0
Operating income (loss)	(78)	(35)	(99)	(41)
Total assets	120	76	120	76
Depreciation and amortization	0	0	0	0
Capital expenditures	$ 0	$ 0	$ 0	$ 0