Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2023

Financial Instruments

Summary of assets and liabilities measured fair value on a recurring basis

Below is a summary of assets and liabilities measured at fair value on a recurring basis (in thousands):

	As of March 31, 2023
	Quoted
	Prices		Significant		Significant
	in Active		Observable		Unobservable
	Markets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Cash equivalents:
Money market funds	$	1,715	$	—	$	—	$	1,715
Reverse repurchase agreements		—		69,000		—		69,000
Treasury bills		6,973		—		—		6,973
Short-term investments:
Corporate debt securities		—		6,075		—		6,075
Treasury bills		4,952		—		—		4,952
Total	$	13,640	$	75,075	$	—	$	88,715

	As of December 31, 2022
	Quoted
	Prices		Significant		Significant
	in Active		Observable		Unobservable
	Markets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Cash and cash equivalents:
Money market funds	$	1,944	$	—	$	—	$	1,944
Short term investments
Corporate debt securities		—		16,445		—		16,445
Yankee securities		—		1,999		—		1,999
Bonds		—		2,988		—		2,988
Treasury bills		5,980		—		—		5,980
Reverse repurchase agreements		—		178,500		—		178,500
Total	$	7,924	$	199,932	$	—	$	207,856