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Note 15 - Business Segments - Business Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2021
Net Revenue | $ 10,922 | $ 8,201 | $ 21,093 | $ 15,042 |
Operating Income / (loss) | 656 | (37) | 1,626 | (364) |
Assets | 42,552 | 38,363 | 42,552 | 38,363 | $ 38,306
Depreciation and amortization | 769 | 766 | 1,502 | 1,469 |
Capital expenditures | 357 | 128 | 795 | 217 |
Manufacturing [Member] |  |  |  |  |
Net Revenue | 3,528 | 3,569 | 7,090 | 6,194 |
Operating Income / (loss) | (48) | 81 | 252 | 63 |
Assets | 14,799 | 11,739 | 14,799 | 11,739 |
Depreciation and amortization | 104 | 110 | 208 | 212 |
Capital expenditures | 35 | 87 | 95 | 154 |
Testing Services [Member] |  |  |  |  |
Net Revenue | 4,966 | 3,560 | 9,566 | 6,514 |
Operating Income / (loss) | 588 | (336) | 1,124 | (673) |
Assets | 24,546 | 21,900 | 24,546 | 21,900 |
Depreciation and amortization | 644 | 636 | 1,251 | 1,222 |
Capital expenditures | 322 | 41 | 699 | 63 |
Distribution [Member] |  |  |  |  |
Net Revenue | 2,420 | 1,065 | 4,418 | 2,323 |
Operating Income / (loss) | 277 | 120 | 531 | 244 |
Assets | 1,850 | 802 | 1,850 | 802 |
Depreciation and amortization | 0 | 0 | 2 | 0 |
Real Estate Segment [Member] |  |  |  |  |
Net Revenue | 8 | 7 | 19 | 11 |
Operating Income / (loss) | (28) | (34) | (51) | (61) |
Assets | 1,283 | 3,846 | 1,283 | 3,846 |
Depreciation and amortization | 21 | 20 | 41 | 35 |
Capital expenditures |  |  | 1 |  |
Fabrication [Member] |  |  |  |  |
Operating Income / (loss) | 0 | 0 | 0 | 0 |
Assets | 0 | 0 | 0 | 0 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Corporate and Unallocated [Member] |  |  |  |  |
Operating Income / (loss) | 133 | 132 | (230) | 63 |
Assets | 74 | 76 | 74 | 76 |
Depreciation and amortization | $ 0 | $ 0 | $ 0 | $ 0 |

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