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Note 11 - Fair Value Measurements (Details Textual) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Oct. 31, 2025 USD ($) | Oct. 31, 2024 USD ($) | Oct. 31, 2025 USD ($) | Oct. 31, 2024 USD ($) | Jun. 17, 2022 USD ($)
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |
Long-Term Debt, Fair Value | $ 511.2 |  | $ 511.2 |  |
Interest Rate Swap [Member] |  |  |  |  |
Derivative, Number of Instruments Held |  |  |  |  | 2
Derivative, Notional Amount |  |  |  |  | $ 300.0
Derivative, Gain (Loss) on Derivative, Net | $ (1.5) | $ (0.8) | $ (3.6) | $ 0.4 |

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