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Note 5 - Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 | Jan. 01, 2023 | Dec. 31, 2022
Goodwill, gross | $ 26,642 | $ 25,099 |
Goodwill, net | 26,642 | 25,099 | $ 25,099
Foreign currency translation | 1,543 |  |
Power Solutions and Protection Segment [Member] |  |  |
Goodwill, gross | 18,623 | 18,152 |
Goodwill, net | 18,623 | 18,152 |
Foreign currency translation | 471 |  |
Connectivity Solutions [Member] |  |  |
Goodwill, gross | 8,019 | 6,947 |
Goodwill, net | 8,019 | 6,947 |
Foreign currency translation | 1,072 |  |
Magnetic Solutions Segment [Member] |  |  |
Goodwill, gross | 0 | 0 |
Goodwill, net | 0 | $ 0 |
Foreign currency translation | $ 0 |  |

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