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Note 3 - Marketable Securities

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

Cash, Cash Equivalents, and Marketable Securities [Text Block]

NOTE 3: MARKETABLE SECURITIES

The following is a summary of available-for-sale marketable securities at December 31, 2021 and 2022:

		As at 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

		As at December 31, 2021
		Amortized cost				Gross unrealized gains				Gross unrealized losses				Fair value
Available-for-sale - matures within one year:
Corporate bonds		$	11,937			$	39			$	(7	)		$	11,969
Available-for-sale - matures after one year through five years:
Corporate bonds			78,920				227				(818	)			78,329
Total		$	90,857			$	266			$	(825	)		$	90,298

The following table presents gross unrealized losses and fair values for those investments that were in an unrealized loss position as of December 31, 2021 and 2022, and the length of time that those investments have been in a continuous loss position:

		Less than 12 months				12 months or greater
		Fair value				Gross unrealized loss				Fair value				Gross unrealized loss
As of December 31, 2022		$	58,706			$	(1,885	)		$	48,539			$	(4,980	)
As of December 31, 2021		$	53,412			$	(667	)		$	12,039			$	(158	)

During the years ended December 31, 2020, 2021 and 2022 the amount of credit losses recorded was not material.

The following table presents gross realized gains and losses from sale of available-for-sale marketable securities:

		Year ended December 31,
		2020				2021				2022
Gross realized gains from sale of available-for-sale marketable securities		$	14			$	43			$	—
Gross realized losses from sale of available-for-sale marketable securities		$	(20	)		$	(30	)		$	(55	)

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- Definition

The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI https://asc.fasb.org/topic&trid=2196928

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- References

No definition available.

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