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v3.25.1

Stock-based Compensation - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024 | Sep. 30, 2024 | Jan. 27, 2015
Class Of Stock [Line Items] |  |  |  |  |  |
Stock compensation expense | $ 185 | $ 175 |  |  |  |
Board Of Directors Fees |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Stock compensation expense | 119 | 119 | $ 238 | $ 257 |  |
Restricted Stock |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Stock compensation expense | 66 | $ 56 | 126 | 112 |  |
Unrecognized expense | 70 |  | 70 |  | $ 150 |
Market Based Restricted Stock Units |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Stock compensation expense |  |  | 364 | $ 369 |  |
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount | 422 |  | $ 422 |  |  |
Unrecognized stock compensation |  |  |  |  | $ 0 |
Options |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Stock compensation expense | $ 0 |  |  |  |  |
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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