Stock-based Compensation - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 31, 2024 |
Mar. 31, 2023 |
Sep. 30, 2023 |
Feb. 27, 2015 |
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| Class Of Stock [Line Items] | ||||||
| Stock compensation expense | $ 175 | $ 228 | $ 369 | $ 533 | ||
| Unrecognized stock compensation | 0 | 0 | $ 0 | |||
| Board Of Directors Fees | ||||||
| Class Of Stock [Line Items] | ||||||
| Stock compensation expense | 119 | 156 | 257 | 313 | ||
| Restricted Stock | ||||||
| Class Of Stock [Line Items] | ||||||
| Stock compensation expense | 56 | 61 | 112 | 191 | ||
| Unrecognized expense | 264 | 264 | $ 376 | |||
| Options | ||||||
| Class Of Stock [Line Items] | ||||||
| Stock compensation expense | $ 0 | $ 0 | $ 0 | $ 18 | ||
| 2015 Option Grants | ||||||
| Class Of Stock [Line Items] | ||||||
| Number of shares authorized to be repurchased (up to) (in shares) | 1,250,000 | |||||
| 2015 Option Grants | Minimum | ||||||
| Class Of Stock [Line Items] | ||||||
| Award vesting period | 1 year | |||||
| 2015 Option Grants | Maximum | ||||||
| Class Of Stock [Line Items] | ||||||
| Award vesting period | 6 years | |||||
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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