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Summary of Company's Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 22,873 | $ 21,270 | $ 66,871 | $ 55,161
Income (loss) from operations | (3,335) | (5,136) | (8,376) | (19,963)
Operating Segments | Oil and Gas Markets |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 14,449 | 12,345 | 44,122 | 31,671
Income (loss) from operations | (280) | (4,122) | 451 | (15,552)
Operating Segments | Adjacent Markets |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 8,234 | 8,778 | 22,128 | 23,058
Income (loss) from operations | 1,717 | 1,428 | 4,350 | 3,841
Operating Segments | Emerging Markets |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 11 |  | 145 |
Income (loss) from operations | (1,388) |  | (3,760) |
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 179 | 147 | 476 | 432
Income (loss) from operations | $ (3,384) | $ (2,442) | $ (9,417) | $ (8,252)

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