INVESTMENTS (Tables)

3 Months Ended

Mar. 31, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-Sale Investments

The following tables summarize the Company’s debt securities classified as available-for-sale investments at March 31, 2023 and December 31, 2022 (in thousands):

	March 31, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Certificates of deposit	$	333	$	—	$	—	$	333
Commercial paper	125		—		—		125
Corporate notes and bonds	1,025		—		(4)		1,021
Total	$	1,483	$	—	$	(4)	$	1,479

	December 31, 2022
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Certificates of deposit	$	2,548	$	—	$	(7)	$	2,541
U.S. Treasury securities	3,015		—		(6)		3,009
Commercial paper	425		—		(1)		424
Corporate notes and bonds	3,769		—		(15)		3,754
Total	$	9,757	$	—	$	(29)	$	9,728

Schedule of Maturities of Available-for-Sale Investments

The following table summarizes the maturities of the Company’s debt securities classified as available-for-sale investments at March 31, 2023 and December 31, 2022 (in thousands):

	March 31, 2023				December 31, 2022
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than 1 year	$	1,483	$	1,479	$	9,757	$	9,728
Total	$	1,483	$	1,479	$	9,757	$	9,728

Schedule of Unrealized Losses or Gains on Equity Securities

Unrealized gains or losses on equity securities recorded in income during the three months ended March 31, 2023 and 2022 were as follows (in thousands):

	Three Months Ended March 31,
	2023		2022
Unrealized gain (loss) on equity investments	$	50	$	—