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Equity Incentive Plans (Narrative) (Details) - USD ($) |  |  |  |  |  | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 24, 2025 | Feb. 03, 2025 | Apr. 25, 2024 | Jun. 30, 2023 | Jan. 31, 2023 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023 | Apr. 27, 2023 | Apr. 26, 2018 | Apr. 08, 2011
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exercise of stock options |  |  |  |  |  |  |  | $ 418,000 |  |  |
Expected future expenses relating to non-vested restricted shares |  |  |  |  |  | $ 451,000 |  |  |  |  |
Expected future compensation expense, weighted average period for recognition |  |  |  |  |  | 10 months 13 days |  |  |  |  |
Stock option expense |  |  |  |  |  | $ 116,000 | $ 107,000 | 99,000 |  |  |
Restricted stock expense |  |  |  |  |  | $ 664,000 | $ 519,000 | $ 303,000 |  |  |
Employee Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares underlying unexercised options |  |  |  |  |  | 106,123 |  |  |  |  |
Expected future compensation expense, unexercised options |  |  |  |  |  | $ 156,000 |  |  |  |  |
Expected future compensation expense, weighted average period for recognition |  |  |  |  |  | 2 years 21 days |  |  |  |  |
Options exercisable - number of option shares |  |  |  |  |  | 851,615 |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted stock issued |  |  | 20,000 |  |  |  |  |  |  |  |
2018 Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares authorized for issuance |  |  |  |  |  |  |  |  |  | 1,000,000 |
2023 Equity Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares authorized for issuance |  |  |  |  |  |  |  |  | 1,000,000 |  |
2011 Stock Plan [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares authorized for issuance |  |  |  |  |  |  |  |  |  |  | 900,000
Directors [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted stock issued |  | 43,773 |  |  | 27,000 |  |  |  |  |  |
Vesting period |  | 1 year |  |  | 4 years |  |  |  |  |  |
Certain Officers [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exercise of stock options | $ 63,763 |  |  |  |  |  |  |  |  |  |
Vesting period | 3 years |  |  |  |  |  |  |  |  |  |
Executive Officers [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted stock issued |  |  | 30,000 | 25,252 |  |  |  |  |  |  |
Executive Officers [Member] | Minimum [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  | 2 years |  |  |  |  |  |  |  |
Executive Officers [Member] | Maximum [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  | 3 years |  |  |  |  |  |  |  |

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