v3.23.2

Note 15 - Stock-based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Stock-based compensation expense | $ 2,889 | $ 4,609
Cost of Sales [Member] |  |
Stock-based compensation expense | 0 | 85
Research and Development Expense [Member] |  |
Stock-based compensation expense | 570 | 813
Selling, General and Administrative Expenses [Member] |  |
Stock-based compensation expense | 2,069 | 2,932
Discontinued Operation [Member] |  |
Stock-based compensation expense | $ 250 | $ 779

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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 -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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