Note 6 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Amortization of Intangible Assets	$ 6.2	$ 7.2	$ 18.4	$ 21.6

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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Reference 6: http://www.xbrl.org/2003/role/exampleRef
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+ Details