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v3.24.3

Note 1 - Organization and Description of Business and Significant Accounting Policies (Details Textual) $ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 23, 2024 USD ($) | Nov. 10, 2023 USD ($) | Sep. 30, 2024 USD ($) shares | Sep. 30, 2023 shares | Aug. 31, 2022 shares | Aug. 31, 2010 shares
Management Contracts Impairment Amount | $ |  |  | $ 0 |  |  |
Increase (Decrease) in Assets Under Management | $ | $ 59,000 | $ 12,000 |  |  |  |
Capitalized Contract Cost, Net | $ |  |  | $ 1,000 |  |  |
Stock Buyback Program [Member] |  |  |  |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares) |  |  |  |  | 2,000,000 | 1,500,000
Share Repurchase Program, Remaining Shares Authorized, Number of Shares (in shares) |  |  |  |  | 1,096,368 |
The Omnibus Plan [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) |  |  | 4 years |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Change of Control Provision, Ownership Percentage |  |  | 50.00% |  |  |
Share Based Compensation Arrangement By Share Based Payment Award, Change of Control Provisions, Percentage of Members of Board of Directors |  |  | 50.00% |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) |  |  | 3,671,300 |  |  |
The Omnibus Plan [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) |  |  | 4 years |  |  |
The Omnibus Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage |  |  | 25.00% |  |  |
Dividend Reinvestment and Stock Purchase Plan (DRSPP) [Member] |  |  |  |  |  |
Stock Issued During Period, Shares, Dividend Reinvestment Plan (in shares) |  |  | 12,902 |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  | 9,535 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) |  |  | 1,530,000 |  |  |
Common Stock, Capital Shares Reserved for Future Issuance (in shares) |  |  | 1,520,968 |  |  |
Maximum [Member] |  |  |  |  |  |
Gain (Loss) on Investments | $ |  |  | $ 1,000 |  |  |
Employee Retention Credit [Member] |  |  |  |  |  |
Income Tax Credits and Adjustments | $ |  |  | $ 300 |  |  |
Open-end Mutual Funds [Member] |  |  |  |  |  |
Number of Funds |  |  | 16 |  |  |
Exchange-traded Fund [Member] |  |  |  |  |  |
Number of Funds |  |  | 1 |  |  |

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