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v3.21.2

Summary of Company's Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |
Revenue | $ 94,864 | $ 87,835
Income (loss) from operations | (16,871) | (18,039)
Depreciation and amortization expenses | 20,777 | 23,693
Impairment, inventory obsolescence and stock-based compensation expenses | 4,971 | 7,702
Interest income | 1,441 | 1,102
Interest expense |  | 38
Operating Segments | Oil and Gas Markets |  |
Segment Reporting Information [Line Items] |  |
Revenue | 52,252 | 61,661
Income (loss) from operations | (16,229) | (2,139)
Depreciation and amortization expenses | 18,199 | 21,192
Impairment, inventory obsolescence and stock-based compensation expenses | 3,850 | 6,326
Interest income | 1,409 | 1,029
Operating Segments | Adjacent Markets Product and Services Revenue |  |
Segment Reporting Information [Line Items] |  |
Revenue | 32,419 | 25,440
Income (loss) from operations | 6,423 | 4,017
Depreciation and amortization expenses | 440 | 453
Impairment, inventory obsolescence and stock-based compensation expenses | 223 | 232
Interest income | 1 | 3
Operating Segments | Emerging Markets |  |
Segment Reporting Information [Line Items] |  |
Revenue | 10,193 | 734
Income (loss) from operations | 5,033 | (6,064)
Depreciation and amortization expenses | 1,209 | 1,194
Impairment, inventory obsolescence and stock-based compensation expenses | 100 | 203
Corporate |  |
Segment Reporting Information [Line Items] |  |
Income (loss) from operations | (12,098) | (13,853)
Depreciation and amortization expenses | 929 | 854
Impairment, inventory obsolescence and stock-based compensation expenses | 798 | 941
Interest income | $ 31 | 70
Interest expense |  | $ 38

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