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Note 5 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | May 31, 2025 | Mar. 03, 2025 | Nov. 07, 2023 | Nov. 02, 2023
Stock Repurchased and Retired During Period, Value |  | $ 7,777 | $ 557 | $ 7,777 | $ 4,301 |  |  |  |
Share Repurchase Program [Member] |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  | $ 30,000
Rule 10b5-1 Trading Plan, Designated Amount |  |  |  |  |  | $ 10,000 | $ 5,000 | $ 10,000 |
Stock Repurchased and Retired During Period, Shares (in shares) |  | 192,000 | 18,000 | 192,000 | 145,000 |  |  |  |
Stock Repurchased and Retired During Period, Value |  | $ 7,800 | $ 600 | $ 7,800 | $ 4,300 |  |  |  |
Share Repurchase Program, Remaining Authorized, Amount |  | $ 17,100 |  | $ 17,100 |  |  |  |  |
Share Repurchase Program [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares (in shares) | 171,000 |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Value | $ 7,200 |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Price Per Share (in dollars per share) | $ 42.04 |  |  |  |  |  |  |  |

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