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Segment Information - Operating Segments (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2021
Segment Reporting Information [Line Items] |  |  |
Total sales | $ 12,369 | $ 11,388 |
Sales: |  |  |
(Loss) income from operations | (396) | (537) |
Total assets | 61,786 | 53,037 | $ 62,974
Capital expenditures | 137 | 33 |
Depreciation and amortization | 94 | 104 |
High Performance Products Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 1,064 | 1,556 |
Sales: |  |  |
(Loss) income from operations | (1,005) | (854) |
Total assets | 9,056 | 9,192 |
Capital expenditures | 45 | 6 |
Depreciation and amortization | 35 | 48 |
TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 11,305 | 9,832 |
Sales: |  |  |
(Loss) income from operations | 609 | 317 |
Total assets | 52,730 | 43,845 |
Capital expenditures | 92 | 27 |
Depreciation and amortization | 59 | 56 |
Product |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 8,720 | 8,408 |
Product | High Performance Products Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 720 | 1,176 |
Product | TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 8,000 | 7,232 |
Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 3,649 | 2,980 |
Services | High Performance Products Segment |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 344 | 380 |
Services | TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 3,305 | 2,600 |
U.K. | TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 155 | 1,490 |
Sales: |  |  |
(Loss) income from operations | (55) | 31 |
Total assets | 9,397 | 10,675 |
U.K. | Product | TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 62 | 1,403 |
U.K. | Services | TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 93 | 87 |
U.S. | TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 11,150 | 8,342 |
Sales: |  |  |
(Loss) income from operations | 664 | 286 |
Total assets | 43,333 | 33,170 |
Capital expenditures | 92 | 27 |
Depreciation and amortization | 59 | 56 |
U.S. | Product | TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | 7,938 | 5,829 |
U.S. | Services | TS |  |  |
Segment Reporting Information [Line Items] |  |  |
Total sales | $ 3,212 | $ 2,513 |

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