Note 15 - Segments - Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue	$ 170,572	$ 138,741	$ 307,290	$ 249,385
Gross Profit	$ 45,452	$ 34,204	$ 79,411	$ 59,144
Gross Profit %	26.60%	24.70%	25.80%	23.70%
Connectivity Solutions [Member]
Revenue	$ 46,096	$ 43,046	$ 89,809	$ 81,102
Gross Profit	$ 12,718	$ 13,050	$ 24,315	$ 22,823
Gross Profit %	27.60%	30.30%	27.10%	28.10%
Power Solutions and Protection Segment [Member]
Revenue	$ 71,026	$ 55,390	$ 129,815	$ 99,031
Gross Profit	$ 20,036	$ 14,373	$ 35,974	$ 25,155
Gross Profit %	28.20%	25.90%	27.70%	25.40%
Magnetic Solutions Segment [Member]
Revenue	$ 53,450	$ 40,305	$ 87,666	$ 69,252
Gross Profit	$ 15,085	$ 9,343	$ 21,975	$ 13,304
Gross Profit %	28.20%	23.20%	25.10%	19.20%
Corporate Segment [Member]
Revenue	$ 0	$ 0	$ 0	$ 0
Gross Profit	$ (2,387)	$ (2,562)	$ (2,853)	$ (2,138)