Note 5 - Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill, gross	$ 26,642	$ 25,099
Goodwill, net	26,642	25,099
Foreign currency translation	(1,511)	1,543
Goodwill allocation related to acquisition	182,905
Goodwill, gross	208,036	26,642
Goodwill, net	208,036	26,642
Power Solutions and Protection Segment [Member]
Goodwill, gross	18,623	18,152
Goodwill, net	18,623	18,152
Foreign currency translation	(1,441)	471
Goodwill allocation related to acquisition	182,905
Goodwill, gross	200,087	18,623
Goodwill, net	200,087	18,623
Connectivity Solutions [Member]
Goodwill, gross	8,019	6,947
Goodwill, net	8,019	6,947
Foreign currency translation	(70)	1,072
Goodwill allocation related to acquisition	0
Goodwill, gross	7,949	8,019
Goodwill, net	7,949	8,019
Magnetic Solutions Segment [Member]
Goodwill, gross	0	0
Goodwill, net	0	0
Foreign currency translation	0	0
Goodwill allocation related to acquisition	0
Goodwill, gross	0	0
Goodwill, net	$ 0	$ 0