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Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2019 | Dec. 31, 2022 | Feb. 28, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense | $ 1,700 | $ 2,000 |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Shares issued | 200,350 | 195,950 |  |  |
Weighted average grant date fair value of the restricted stock | $ 8.49 | $ 7.00 |  |  |
Unrecognized compensation expense | $ 1,900 |  |  |  |
Expected period for recognition of unrecognized compensation expense | 2 years 3 months 18 days |  |  |  |
Restricted Stock Awards (RSAs) |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation expense |  |  |  | $ 2,000 |
2014 Long Term Incentive Plan, Amended |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Common stock reserved for issuance |  |  |  |  | 3,000,000
Percent of outstanding common stock granted to employees | 10.00% |  |  |  |
Exercise price of stock option granted to employees | 110.00% |  |  |  |
Common stock available for issuance | 1,468,916 |  |  |  |
2014 Long Term Incentive Plan, Amended | Restricted Stock Units (RSUs) |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Shares issued | 200,350 | 195,950 |  |  |
Weighted average grant date fair value of the restricted stock | $ 8.49 | $ 7.00 |  |  |
Grant date fair value of restricted stock | $ 1,700 | $ 1,400 |  |  |
2014 Long Term Incentive Plan, Amended | Restricted Stock Awards (RSAs) |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Shares issued |  |  | 0 |  |
2014 Long Term Incentive Plan, Amended | Maximum |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Options have a term | 10 years |  |  |  |
Outstanding shares of common stock granted to employees expiry term | 5 years |  |  |  |
2014 Long Term Incentive Plan, Amended | Maximum | Restricted Stock Units (RSUs) |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Restricted stock restriction period | 4 years | 4 years |  |  |
2014 Long Term Incentive Plan, Amended | Minimum | Restricted Stock Units (RSUs) |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Restricted stock restriction period | 1 year | 1 year |  |  |

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