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Note 8 - Fair Value Measurement - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Corporate bonds	$ 126,870	$ 132,695
Foreign exchange contracts	413	988
Investments in marketable equity securities	346	406
Fair Value, Inputs, Level 1 [Member]
Foreign exchange contracts	0	0
Investments in marketable equity securities	346	406
Fair Value, Inputs, Level 2 [Member]
Foreign exchange contracts	413	988
Investments in marketable equity securities	0	0
Fair Value, Inputs, Level 3 [Member]
Foreign exchange contracts	0	0
Investments in marketable equity securities	0	0
Corporate Bonds [Member]
Corporate bonds	126,870	132,695
Corporate Bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Corporate bonds	0	0
Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Corporate bonds	126,870	132,695
Corporate Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Corporate bonds	$ 0	$ 0

X

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481830/320-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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X

- 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

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