Note 16 - Segments - Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Net sales	$ 152,238	$ 128,090
Cost of sales	93,419	80,012
Gross profit	$ 58,819	$ 48,078
Gross profit %	38.60%	37.50%
Research and development costs	$ 7,222	$ 5,215
Selling, general and administrative expenses	29,507	24,944
Restructuring charges	(2,933)	65
Interest expense	4,152	434
Interest income	(275)	(1,115)
Other income, net	(2,639)	(1,817)
Earnings before provision for income taxes	23,785	20,352
Total Assets	940,456	555,337	$ 949,789
Capital Expenditures	2,790	2,929
Depreciation and Amortization Expense	6,684	3,684
Power Solutions and Protection Segment [Member]
Net sales	83,054	60,247
Cost of sales	47,712	33,731
Gross profit	$ 35,342	$ 26,516
Gross profit %	42.60%	44.00%
Interest expense	$ 116	$ 147
Total Assets	643,116	196,960
Capital Expenditures	1,380	754
Depreciation and Amortization Expense	4,525	1,686
Connectivity Solutions [Member]
Net sales	50,730	54,285
Cost of sales	31,521	34,668
Gross profit	$ 19,209	$ 19,617
Gross profit %	37.90%	36.10%
Interest expense	$ 0	$ 32
Total Assets	178,115	205,927
Capital Expenditures	1,283	2,038
Depreciation and Amortization Expense	1,765	1,668
Magnetic Solutions Segment [Member]
Net sales	18,454	13,558
Cost of sales	13,897	11,384
Gross profit	$ 4,557	$ 2,174
Gross profit %	24.70%	16.00%
Interest expense	$ 0	$ 0
Total Assets	56,351	57,148
Capital Expenditures	122	136
Depreciation and Amortization Expense	255	208
Corporate Segment [Member]
Net sales	0	0
Cost of sales	289	229
Gross profit	(289)	(229)
Interest expense	4,036	255
Total Assets	62,874	95,302
Capital Expenditures	5	1
Depreciation and Amortization Expense	$ 139	$ 122