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Note 7 - Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

		June 30, 2024 (Unaudited)
		Amortized cost				Gross unrealized gains				Gross unrealized losses				Fair value
Available-for-sale - matures within one year:
Corporate bonds		$	51,319			$	19			$	(673	)		$	50,665
Available-for-sale - matures after one year through three years:
Corporate bonds			83,558				91				(2,712	)			80,937
Total
		$	134,877			$	110			$	(3,385	)		$	131,602

		December 31, 2023
		Amortized cost				Gross unrealized gains				Gross unrealized losses				Fair value
Available-for-sale - matures within one year:
Corporate bonds		$	27,690			$	4			$	(243	)		$	27,451
Available-for-sale - matures after one year through three years:
Corporate bonds			108,700				278				(3,734	)			105,244
Total		$	136,390			$	282			$	(3,977	)		$	132,695

Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]

		Less than 12 months								12 months or greater
		Fair value				Gross unrealized loss				Fair value				Gross unrealized loss
As of June 30, 2024 (unaudited)		$	37,893			$	(237	)		$	73,923			$	(3,148	)
As of December 31, 2023		$	18,193			$	(49	)		$	86,643			$	(3,928	)

Schedule of Realized Gain (Loss) [Table Text Block]

		Six months ended June 30,								Three months ended June 30,
		2024				2023				2024				2023
		(unaudited)				(unaudited)				(unaudited)				(unaudited)
Gross realized gains from sale of available-for-sale marketable securities		$	15			$	92			$	6			$	—
Gross realized losses from sale of available-for-sale marketable securities		$	(5	)		$	(16	)		$	—			$	(16	)

X

- Definition

Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479081/326-30-55-8

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-Topic 320
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-Name Accounting Standards Codification
-Section 50
-Paragraph 6
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-6

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
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- Definition

Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

+ References

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-Section 50
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