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Note 3 - Revenue - Disaggregation of Revenue by Product Group and Sales Channel (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Net sales | $ 492,412 | $ 548,184
Sales Channel, Directly to Consumer [Member] |  |
Net sales | 356,613 | 398,659
Sales Channel, Through Intermediary [Member] |  |
Net sales | 135,799 | 149,525
North America [Member] |  |
Net sales | 256,044 | 271,691
Europe [Member] |  |
Net sales | 81,622 | 89,290
Asia [Member] |  |
Net sales | 154,746 | 187,203
Connectivity Solutions [Member] |  |
Net sales | 172,348 | 186,724
Connectivity Solutions [Member] | Sales Channel, Directly to Consumer [Member] |  |
Net sales | 113,115 | 120,333
Connectivity Solutions [Member] | Sales Channel, Through Intermediary [Member] |  |
Net sales | 59,233 | 66,391
Connectivity Solutions [Member] | North America [Member] |  |
Net sales | 128,096 | 135,454
Connectivity Solutions [Member] | Europe [Member] |  |
Net sales | 33,099 | 34,130
Connectivity Solutions [Member] | Asia [Member] |  |
Net sales | 11,153 | 17,140
Power Solutions and Protection [Member] |  |
Net sales | 163,528 | 176,053
Power Solutions and Protection [Member] | Sales Channel, Directly to Consumer [Member] |  |
Net sales | 110,587 | 120,787
Power Solutions and Protection [Member] | Sales Channel, Through Intermediary [Member] |  |
Net sales | 52,941 | 55,266
Power Solutions and Protection [Member] | North America [Member] |  |
Net sales | 93,540 | 98,432
Power Solutions and Protection [Member] | Europe [Member] |  |
Net sales | 41,016 | 45,556
Power Solutions and Protection [Member] | Asia [Member] |  |
Net sales | 28,972 | 32,065
Magnetic Solutions [Member] |  |
Net sales | 156,536 | 185,407
Magnetic Solutions [Member] | Sales Channel, Directly to Consumer [Member] |  |
Net sales | 132,911 | 157,539
Magnetic Solutions [Member] | Sales Channel, Through Intermediary [Member] |  |
Net sales | 23,625 | 27,868
Magnetic Solutions [Member] | North America [Member] |  |
Net sales | 34,408 | 37,805
Magnetic Solutions [Member] | Europe [Member] |  |
Net sales | 7,507 | 9,604
Magnetic Solutions [Member] | Asia [Member] |  |
Net sales | $ 114,621 | $ 137,998

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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