| Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
| Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2021 | Mar. 31, 2020 | |
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||||
| Stock based compensation expense | $ 270 | $ 19 | $ 287 | $ 48 | 
| Unrecognized compensation expense | $ 55 | $ 55 | ||
| Granted | 1,250 | |||
| 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 | ||
| X | ||||||||||
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- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
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- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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| X | ||||||||||
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- Definition Gross number of share options (or share units) granted during the period. No definition available. 
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| X | ||||||||||
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- Details 
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| X | ||||||||||
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- Details 
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