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v3.21.2

Summary of Revenue by Geographic Area (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Schedule Of Revenues From External Customers [Line Items] |  |
Revenue | $ 94,864 | $ 87,835
Africa |  |
Schedule Of Revenues From External Customers [Line Items] |  |
Revenue | 2,507 | 5,814
Asia |  |
Schedule Of Revenues From External Customers [Line Items] |  |
Revenue | 23,299 | 41,128
Canada |  |
Schedule Of Revenues From External Customers [Line Items] |  |
Revenue | 997 | 3,193
Europe |  |
Schedule Of Revenues From External Customers [Line Items] |  |
Revenue | 13,801 | 12,626
United States |  |
Schedule Of Revenues From External Customers [Line Items] |  |
Revenue | 49,541 | 23,780
Other |  |
Schedule Of Revenues From External Customers [Line Items] |  |
Revenue | $ 4,719 | $ 1,294

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. 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