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Note 8 - Fair Value Measurement - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Corporate bonds | $ 104,181 | $ 112,080
Investments in marketable equity securities | 332 | 408
Foreign exchange contracts | 239 | 13
Foreign exchange contracts |  | 119
Fair Value, Inputs, Level 1 [Member] |  |
Investments in marketable equity securities | 332 | 408
Foreign exchange contracts | 0 | 0
Foreign exchange contracts |  | 0
Fair Value, Inputs, Level 2 [Member] |  |
Investments in marketable equity securities | 0 | 0
Foreign exchange contracts | 239 | 13
Foreign exchange contracts |  | 119
Fair Value, Inputs, Level 3 [Member] |  |
Investments in marketable equity securities | 0 | 0
Foreign exchange contracts | 0 | 0
Foreign exchange contracts |  | 0
Corporate Bonds [Member] |  |
Corporate bonds | 104,181 | 112,080
Corporate Bonds [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Corporate bonds | 0 | 0
Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Corporate bonds | 104,181 | 112,080
Corporate Bonds [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Corporate bonds | $ 0 | $ 0

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- Definition Amount of investment in marketable security, classified as current. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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