Summary of Operations and Significant Accounting Policies - Advertising Expense - Additional Information (Details) - USD ($) $ in Millions |
12 Months Ended | ||
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Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||
| Advertising expense | $ 0.4 | $ 0.2 | $ 0.3 |
| X | ||||||||||
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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