Note 4 - Revenue - Disaggregation of Revenue by Product Group and Sales Channel (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net sales	$ 158,682	$ 177,739	$ 499,803	$ 485,030
Sales Channel, Directly to Consumer [Member]
Net sales	108,897	119,101	345,906	320,400
Sales Channel, Through Intermediary [Member]
Net sales	49,785	58,638	153,897	164,630
Power Solutions and Protection [Member]
Net sales	74,862	76,433	245,134	206,247
Power Solutions and Protection [Member] | Sales Channel, Directly to Consumer [Member]
Net sales	52,507	48,765	174,143	130,210
Power Solutions and Protection [Member] | Sales Channel, Through Intermediary [Member]
Net sales	22,355	27,668	70,991	76,037
Connectivity Solutions [Member]
Net sales	51,771	50,253	160,010	140,062
Connectivity Solutions [Member] | Sales Channel, Directly to Consumer [Member]
Net sales	31,369	29,974	101,063	84,571
Connectivity Solutions [Member] | Sales Channel, Through Intermediary [Member]
Net sales	20,402	20,279	58,947	55,491
Magnetic Solutions [Member]
Net sales	32,049	51,053	94,659	138,721
Magnetic Solutions [Member] | Sales Channel, Directly to Consumer [Member]
Net sales	25,021	40,362	70,700	105,619
Magnetic Solutions [Member] | Sales Channel, Through Intermediary [Member]
Net sales	7,028	10,691	23,959	33,102
North America [Member]
Net sales	111,083	111,634	346,949	298,827
North America [Member] | Power Solutions and Protection [Member]
Net sales	55,262	60,267	182,183	155,022
North America [Member] | Connectivity Solutions [Member]
Net sales	42,841	37,877	130,086	105,189
North America [Member] | Magnetic Solutions [Member]
Net sales	12,980	13,490	34,680	38,616
Europe [Member]
Net sales	22,804	20,641	75,704	64,287
Europe [Member] | Power Solutions and Protection [Member]
Net sales	13,759	8,779	43,266	29,264
Europe [Member] | Connectivity Solutions [Member]
Net sales	7,500	9,327	25,462	26,895
Europe [Member] | Magnetic Solutions [Member]
Net sales	1,545	2,535	6,976	8,128
Asia [Member]
Net sales	24,795	45,464	77,150	121,916
Asia [Member] | Power Solutions and Protection [Member]
Net sales	5,841	7,387	19,685	21,961
Asia [Member] | Connectivity Solutions [Member]
Net sales	1,430	3,049	4,462	7,978
Asia [Member] | Magnetic Solutions [Member]
Net sales	$ 17,524	$ 35,028	$ 53,003	$ 91,977