XML 40 R31.htm IDEA: XBRL DOCUMENT v3.23.3

Note 7 - Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

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

		September 30, 2023 (Unaudited)
		Amortized cost				Gross unrealized gains				Gross unrealized losses				Fair value
Available-for-sale - matures within one year:
Corporate bonds		$	26,009			$	—			$	(1,116	)		$	24,893
Available-for-sale - matures after one year through three years:
Corporate bonds			83,990				1				(4,703	)			79,288
Total
		$	109,999			$	1			$	(5,819	)		$	104,181

		December 31, 2022
		Amortized cost				Gross unrealized gains				Gross unrealized losses				Fair value
Available-for-sale - matures within one year:
Corporate bonds		$	17,552			$	—			$	(1,330	)		$	16,222
Available-for-sale - matures after one year through five years:
Corporate bonds			101,355				38				(5,535	)			95,858
Total		$	118,907			$	38			$	(6,865	)		$	112,080

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 September 30, 2023 (unaudited)		$	26,887			$	(427	)		$	75,779			$	(5,392	)
As of December 31, 2022		$	58,706			$	(1,885	)		$	48,539			$	(4,980	)

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

		Nine months ended September 30,								Three months ended September 30,
		2023				2022				2023				2022
		(unaudited)				(unaudited)				(unaudited)				(unaudited)
Gross realized gains from sale of available-for-sale marketable securities		$	92			$	—			$	—			$	—
Gross realized losses from sale of available-for-sale marketable securities		$	(24	)		$	(25	)		$	(8	)		$	(4	)

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

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-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
-URI https://asc.fasb.org//1943274/2147479106/326-30-50-4

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- 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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-9

+ Details

Name:	us-gaap_ScheduleOfRealizedGainLossTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration