Note 10 - Legal Proceedings (Details Textual) - USD ($) $ in Millions		3 Months Ended	18 Months Ended
Oct. 10, 2023	Jun. 30, 2025	Sep. 30, 2023	Oct. 09, 2023
Loss Contingency, Damages Awarded, Value	$ 10.4			$ 6.5
Loss Contingency, Damages Paid, Value		$ 4.1
Legal Fees		$ 1.0
Increase (Decrease) in Deposits			$ (3.1)

The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 230
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- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of damages awarded to the plaintiff in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
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- Definition

Amount of damages paid to the plaintiff in the legal matter.

+ References

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