Note 7 - Common Stock (Details Textual) - USD ($) |
3 Months Ended | 7 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Mar. 31, 2026 |
Dec. 31, 2025 |
Sep. 30, 2025 |
Mar. 31, 2025 |
Sep. 30, 2024 |
Mar. 31, 2026 |
Sep. 09, 2025 |
Jun. 30, 2025 |
|
| Shares Authorized (in shares) | 15,000,000 | 15,000,000 | ||||||
| Common Stock, Shares Authorized (in shares) | 13,000,000 | 13,000,000 | 13,000,000 | |||||
| Common Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.01 | $ 0.01 | $ 0.01 | |||||
| Stock Repurchased and Retired During Period, Value | $ 151,000 | $ 2,787,000 | $ 1,013,000 | $ 1,914,000 | $ 4,558,000 | |||
| Share Repurchase Program Authorized on September 9, 2025 [Member] | ||||||||
| Share Repurchase Program, Authorized, Amount | $ 10,000,000 | |||||||
| Stock Repurchased and Retired During Period, Shares (in shares) | 151,911 | |||||||
| Stock Repurchased and Retired During Period, Value | $ 3,918,000 | |||||||
| Stock Repurchased During the Period, Share Price (in dollars per share) | $ 25.79 | |||||||
| Not Designated as Hedging Instrument [Member] | ||||||||
| Shares Authorized (in shares) | 2,000,000 | 2,000,000 | ||||||
| X | ||||||||||
- Definition Represents the total number of shares authorized. No definition available.
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| X | ||||||||||
- Definition The price per share repurchased during the period. No definition available.
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| X | ||||||||||
- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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