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Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Stock based compensation expense | $ (57) | $ 19 | $ 230 | $ 67
Unrecognized compensation expense | $ 69 |  | $ 69 |
Granted |  |  | 2,500 |
Stock Option |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Granted |  |  |  | 0
2014 Omnibus Equity Incentive Plan |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Common stock reserved for issuance | 300,000 |  | 300,000 |

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