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Equity Incentive Plans (Narrative) (Details) - USD ($) |  |  |  |  | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2023 | Jan. 31, 2023 | Sep. 30, 2022 | Jan. 12, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Apr. 27, 2023
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |
Expected future expenses relating to non-vested restricted shares |  |  |  |  | $ 960,000 |  |
Expected future compensation expense, weighted average period for recognition |  |  |  |  | 2 years 3 months |  |
Stock option expense |  |  |  |  | $ 99,000 | $ 180,000 |
Restricted stock expense |  |  |  |  | $ 303,000 | $ 278,000 |
Options [Member] |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |
Shares underlying unexercised options |  |  |  |  | 175,080 |  |
Expected future compensation expense, unexercised options |  |  |  |  | $ 302,000 |  |
Expected future compensation expense, weighted average period for recognition |  |  |  |  | 3 years 1 month 13 days |  |
Options exercisable - number of option shares |  |  |  |  | 800,895 |  |
2023 Equity Incentive Plan [Member] |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |
Shares authorized for issuance |  |  |  |  |  |  | 1,000,000
Directors [Member] | Restricted Stock [Member] |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |
Restricted stock issued |  | 27,000 |  |  |  |  |
Vesting period |  | 4 years |  |  |  |  |
Directors [Member] | 2018 Equity Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |
Restricted stock issued |  |  |  | 33,000 |  |  |
Vesting period |  |  |  | 4 years |  |  |
Executive Officers [Member] | 2018 Equity Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |
Restricted stock issued |  |  | 36,000 |  |  |  |
Director And Officer [Member] | Restricted Stock [Member] |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |
Restricted stock issued | 25,252 |  |  |  |  |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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