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BUSINESS SEGMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
Net revenue | $ 6,841 | $ 9,823
Operating income (loss) | (327) | 222
Total assets | 35,828 | 36,118
Depreciation and amortization | 702 | 786
Capital expenditures | 87 | 539
Manufacturing |  |
Net revenue | 2,625 | 3,317
Operating income (loss) | (18) | (12)
Total assets | 10,383 | 9,434
Depreciation and amortization | 106 | 86
Capital expenditures | 67 | 19
Testing Services |  |
Net revenue | 2,954 | 4,390
Operating income (loss) | (337) | 68
Total assets | 20,848 | 22,138
Depreciation and amortization | 579 | 681
Capital expenditures | 20 | 520
Distribution |  |
Net revenue | 1,258 | 2,099
Operating income (loss) | 124 | 204
Total assets | 758 | 785
Depreciation and amortization | 0 | 1
Capital expenditures | 0 | 0
Real Estate |  |
Net revenue | 4 | 17
Operating income (loss) | (27) | (17)
Total assets | 3,722 | 3,577
Depreciation and amortization | 17 | 18
Capital expenditures | 0 | 0
Fabrication Services |  |
Net revenue | 0 | 0
Operating income (loss) | 0 | 0
Total assets | 25 | 27
Depreciation and amortization | 0 | 0
Capital expenditures | 0 | 0
Corporate And Unallocated |  |
Net revenue | 0 | 0
Operating income (loss) | (69) | (21)
Total assets | 92 | 157
Depreciation and amortization | 0 | 0
Capital expenditures | $ 0 | $ 0

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