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Note 2 - Acquisitions - Components of Fair Value of Acquisitions and Allocation of Purchase Price For Acquisition of McStarlite (Details) - USD ($) $ in Thousands			12 Months Ended
	Feb. 05, 2025	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Goodwill			$ 610,338	$ 281,283
McStarlite [Member]
Cash payments		$ 57,271	57,549
Cash payments			278
Less: cash acquired		(586)	(586)
Less: cash acquired			0
Total	$ 57,000	56,685	56,963
Total			278
Other acquired assets		8,808	8,808
Other acquired assets			0
Inventories		6,524	6,744
Inventories			220
Customer backlog			(1,900)
Property, plant, and equipment		5,315	8,603
Property, plant, and equipment			3,288
Identifiable intangible assets	24,500	26,400	24,500
Goodwill	$ 16,700	17,692	16,761
Goodwill			(1,270)
Liabilities assumed		(12,114)	(12,423)
Liabilities assumed			30
Total		56,685	56,963
McStarlite [Member] | Order or Production Backlog [Member]
Customer backlog		$ 4,060	3,970
Customer backlog			$ (90)

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-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

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