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Note 5 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2024
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%	21.00%
Deferred Tax Liabilities, Net	$ 122.2	$ 122.2
Deferred Tax Liabilities, Increase (Decrease) From OBBA	$ 31.0

X

- Definition

Increase (decrease) in the amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting stemming primarily from the One Big Beautiful Bill Act.

+ References

No definition available.

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X

- Definition

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
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X

- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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