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Note 15 - Share-based Compensation - Stock Compensation Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Stock compensation expense | $ 25,334 | $ 13,956 | $ 5,981
Research and Development Expense [Member] |  |  |
Stock compensation expense | 3,176 | 1,906 | 1,012
Selling and Marketing Expense [Member] |  |  |
Stock compensation expense | 3,649 | 1,788 | 852
General and Administrative Expense [Member] |  |  |
Stock compensation expense | 14,066 | 8,061 | 3,518
Cost of Sales [Member] |  |  |
Stock compensation expense | $ 4,443 | $ 2,201 | $ 599

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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