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Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Stock based compensation expense | $ 19 | $ 31 | $ 48 | $ 78
Unrecognized compensation expense | $ 97 |  | $ 97 |
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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