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Concentrations (Details) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2024 USD ($) customer item | Sep. 30, 2023 USD ($) customer item | Sep. 30, 2022 USD ($) customer item
Concentration of Credit Risk |  |  |
Concentration of Credit Risk |  |  |
Number of banks for maintenance of cash balances | item | 2 |  |
Revenues Net [Member] | Customer Concentration Risk [Member] | Five Customers |  |  |
Concentrations |  |  |
Number of major customers | customer | 5 | 5 | 5
Concentration of risk (as a percent) | 42.00% | 54.00% | 58.00%
Accounts receivable | Customer Concentration Risk [Member] | Five Customers |  |  |
Concentrations |  |  |
Number of customers | customer | 5 | 5 | 5
Accounts receivable and contract assets | $ | $ 7.6 | $ 3.5 | $ 3.3
Inventory [Member] | Supplier Concentration Risk [Member] |  |  |
Concentrations |  |  |
Concentration risk threshold percentage | 63.10% | 49.00% | 33.70%
Number of major suppliers | item | 4 | 4 | 3

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