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Stock-Based Compensation (Narrative) (Details) - USD ($) |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
May 13, 2019 | Oct. 16, 2013 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Stock Based Compensation [Abstract] |  |  |  |  |  |  |
Stock-Based Compensation expense |  |  | $ 0 | $ 0 | $ 0 | $ 0 |
Stock options granted |  |  |  |  | 0 |  | 0
Stock options outstanding |  |  | 0 |  | 0 |  |
Stock options exercise price description |  | may not be exercised at a price which is less than 100% of the fair market value of shares at the date of grant |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |
Stock Based Compensation [Abstract] |  |  |  |  |  |  |
Stock-Based Compensation expense |  |  | $ 1,049,000 | 348,000 | $ 1,726,000 | 1,048,000 |
Recognized tax benefits |  |  | 41,000 | $ 30,000 | 115,000 | $ 94,000 |
Restricted Stock [Member] | Former Shareholder |  |  |  |  |  |  |
Stock Based Compensation [Abstract] |  |  |  |  |  |  |
Increase in expense due to vesting of stock |  |  | $ 700,000 |  | $ 700,000 |  |
Class A Common Stock | Stock Option [Member] |  |  |  |  |  |  |
Stock Based Compensation [Abstract] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  | 990,000 |  |  |  |  |
Class A Common Stock | Incentive Compensation Plan [Member] |  |  |  |  |  |  |
Stock Based Compensation [Abstract] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  | 620,000 |  |  |  |  |
Class A Common Stock | Convert For Class B [Member] |  |  |  |  |  |  |
Stock Based Compensation [Abstract] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  | 370,000 |  |  |  |  |
Class B Common Stock |  |  |  |  |  |  |
Stock Based Compensation [Abstract] |  |  |  |  |  |  |
Increase in number of common stock shares authorized | 90,000 |  |  |  |  |  |
Class B Common Stock | Stock Option [Member] |  |  |  |  |  |  |
Stock Based Compensation [Abstract] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  | 370,000 |  |  |  |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of expense recognized from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments), awarded to key employees or individuals. Excludes amount related to plans that cover generally all employees (for example, but not limited to, qualified pension plans). + References No definition available. + Details
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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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