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Note 3 - Revenue From Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
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Apr. 02, 2022 | Apr. 03, 2021
Revenue | $ 150,515 | $ 115,716
Percentage of revenue | 100.00% | 100.00%
UNITED STATES |  |
Revenue | $ 17,703 | $ 9,110
Percentage of revenue | 12.00% | 8.00%
Other Americas [Member] |  |
Revenue | $ 3,837 | $ 6,733
Percentage of revenue | 3.00% | 6.00%
Americas [Member] |  |
Revenue | $ 21,540 | $ 15,843
Percentage of revenue | 15.00% | 14.00%
CHINA |  |
Revenue | $ 75,431 | $ 67,119
Percentage of revenue | 50.00% | 58.00%
JAPAN |  |
Revenue | $ 18,903 | $ 7,777
Percentage of revenue | 13.00% | 7.00%
Other Asia [Member] |  |
Revenue | $ 14,418 | $ 13,494
Percentage of revenue | 9.00% | 11.00%
Asia [Member] |  |
Revenue | $ 108,752 | $ 88,390
Percentage of revenue | 72.00% | 76.00%
Europe [Member] |  |
Revenue | $ 20,223 | $ 11,483
Percentage of revenue | 13.00% | 10.00%
Product [Member] | Sales Channel, Through Intermediary [Member] |  |
Revenue | $ 135,413 | $ 98,779
Percentage of revenue | 90.00% | 85.00%
Product [Member] | Sales Channel, Directly to Consumer [Member] |  |
Revenue | $ 11,565 | $ 12,813
Percentage of revenue | 8.00% | 11.00%
License and Service [Member] |  |
Revenue | $ 3,537 | $ 4,124
Percentage of revenue | 2.00% | 4.00%

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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 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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