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Note 5 - Stock-Based Compensation - Allocation of Stock-Based Compensation (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Stock-based compensation expense | $ 2,406 | $ 2,578 | $ 5,237 | $ 5,454
Stock-based compensation capitalized to software and patent costs | 3 | 14 | 20 | 27
Total stock-based compensation | 2,409 | 2,592 | 5,257 | 5,481
Cost of Sales [Member] |  |  |  |
Stock-based compensation expense | 156 | 318 | 409 | 556
Selling and Marketing Expense [Member] |  |  |  |
Stock-based compensation expense | 798 | 563 | 1,510 | 1,324
Research and Development Expense [Member] |  |  |  |
Stock-based compensation expense | 645 | 675 | 1,263 | 1,611
General and Administrative Expense [Member] |  |  |  |
Stock-based compensation expense | $ 807 | $ 1,022 | $ 2,055 | $ 1,963

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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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- Definition Amount of cost expensed and capitalized for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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