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Equity and Stock-Based Compensation - Summary of Stock Repurchase Plans (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Sep. 30, 2022 | Sep. 30, 2020
Equity, Class of Treasury Stock [Line Items] |  |
Amount Used for Repurchases | $ 4,115 | $ 2,000
2022 Stock Repurchase Plan |  |
Equity, Class of Treasury Stock [Line Items] |  |
Date Approved by Board | Feb. 10, 2022 |
Plan Term | 1 year |
Amount Authorized | $ 5,000 |
Amount Used for Repurchases | $ 1,400 |
Average Price Paid per Share | $ 9.78 |
Shares Repurchased | 143,430 |
Amount Available for Repurchases | $ 3,600 |
Fiscal Year of Repurchases | 2022 |
2021 Stock Repurchase Plan |  |
Equity, Class of Treasury Stock [Line Items] |  |
Date Approved by Board | Feb. 09, 2021 |
Plan Term | 1 year |
Amount Authorized | $ 4,000 |
Amount Used for Repurchases | $ 2,700 |
Average Price Paid per Share | $ 9.31 |
Shares Repurchased | 291,383 |
Fiscal Year of Repurchases | 2022 |
2020 Stock Repurchase Plan |  |
Equity, Class of Treasury Stock [Line Items] |  |
Date Approved by Board | Feb. 04, 2020 |
Plan Term | 1 year |
Amount Authorized | $ 4,000 |
Amount Used for Repurchases | $ 2,000 |
Average Price Paid per Share | $ 5.46 |
Shares Repurchased | 366,000 |
Fiscal Year of Repurchases | 2020 |
2019 Stock Repurchase Plan |  |
Equity, Class of Treasury Stock [Line Items] |  |
Date Approved by Board | Nov. 29, 2018 |
Plan Term | 1 year |
Amount Authorized | $ 4,000 |

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- Definition Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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