Note 2 - Acquisitions - Components of Fair Value of Acquisitions and Allocation of Purchase Price For Acquisition of Sanyu Switch (Details) - USD ($) $ in Thousands				3 Months Ended
Jun. 30, 2024	Mar. 31, 2024	Feb. 19, 2024	Jun. 30, 2024	Jun. 30, 2023
Goodwill	$ 281,283			$ 281,283	$ 264,821
Sanyu Switch Co., Ltd [Member]
Cash payments	22,178	$ 22,178
Holdbacks	2,464	2,464	$ 2,500	2,464
Less cash acquired	(3,711)	(3,711)
Total	20,931	20,931	20,900
Other acquired assets	8,693	9,453		8,693
Other acquired assets				(760)
Inventories	5,704	5,709		5,704
Inventories				(5)
Property, plant, & equipment	4,568	4,791		4,568
Property, plant, and equipment				(223)
Identifiable intangible assets	2,600	2,600	2,600	2,600
Identifiable intangible assets				0
Goodwill	8,166	6,696	$ 8,200	8,166
Goodwill				1,470
Liabilities assumed	$ (8,800)	$ (8,318)		(8,800)
Liabilities assumed				(482)
Total				$ 0

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