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v3.22.2.2

Employee Stock Purchase Plan (Details) - shares | 12 Months Ended |
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Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2013
Employee Stock Purchase Plan |  |  |
Number of shares covered under the Employee Stock Purchase Plan (ESPP) |  |  | 250,000
Purchase price per share as percentage of fair market value | 95.00% |  |
Issuance of shares under employee stock purchase plan (in shares) | 31,372 | 32,939 |
Number of remaining shares authorized | 420 |  |

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