Note 13 - Segments - Net Sales to External Customers by Geographic Area and by Major Product Line (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Net sales	$ 654,233	$ 543,494
Connectivity Solutions [Member]
Net sales	187,085	165,027
Magnetic Solutions [Member]
Net sales	178,782	160,432
Power Solutions and Protection [Member]
Net sales	288,366	218,035
UNITED STATES
Net sales	409,199	317,436
CHINA
Net sales	77,061	83,263
MACAO
Net sales	61,744	53,802
UNITED KINGDOM
Net sales	21,903	20,000
SLOVAKIA
Net sales	22,120	19,407
GERMANY
Net sales	24,112	17,856
INDIA
Net sales	17,608	12,430
SWITZERLAND
Net sales	9,893	8,315
All Other Foreign Countries [Member]
Net sales	$ 10,593	$ 10,985