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v3.20.2

Summary of Company's Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
Segment Reporting Information [Line Items] |  |
Revenue | $ 87,835 | $ 95,809
Income (loss) from operations | (18,039) | 1,033
Depreciation and amortization expenses | 23,693 | 19,339
Impairment, inventory obsolescence and stock-based compensation expenses | 7,702 | 6,943
Interest income | 1,102 | 1,308
Interest expense | 38 | 99
Operating Segments | Oil and Gas Markets |  |
Segment Reporting Information [Line Items] |  |
Revenue | 61,661 | 64,966
Income (loss) from operations | (2,139) | 3,095
Depreciation and amortization expenses | 21,192 | 16,865
Impairment, inventory obsolescence and stock-based compensation expenses | 6,326 | 6,046
Interest income | 1,029 | 1,033
Operating Segments | Adjacent Markets Product and Services Revenue |  |
Segment Reporting Information [Line Items] |  |
Revenue | 25,440 | 30,156
Income (loss) from operations | 4,017 | 6,234
Depreciation and amortization expenses | 453 | 466
Impairment, inventory obsolescence and stock-based compensation expenses | 232 | 92
Interest income | 3 | 1
Operating Segments | Emerging Markets Product and Services Revenue |  |
Segment Reporting Information [Line Items] |  |
Revenue | 734 | 159
Income (loss) from operations | (6,064) | (2,306)
Depreciation and amortization expenses | 1,194 | 1,164
Impairment, inventory obsolescence and stock-based compensation expenses | 203 | 68
Corporate |  |
Segment Reporting Information [Line Items] |  |
Revenue |  | 528
Income (loss) from operations | (13,853) | (5,990)
Depreciation and amortization expenses | 854 | 844
Impairment, inventory obsolescence and stock-based compensation expenses | 941 | 737
Interest income | 70 | 274
Interest expense | $ 38 | $ 99

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