Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2022

Financial Instruments

Schedule of assets and liabilities measured fair value on recurring basis

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

	As of March 31, 2022
	Quoted
	Prices		Significant		Significant
	in Active		Observable		Unobservable
	Markets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Cash equivalents:
Money market funds	$	8,145	$	—	$	—	$	8,145
Corporate debt securities		—		4,396		—		4,396
Commercial paper		—		3,996		—		3,996
Reverse repurchase agreements		—		3,000		—		3,000
Short term investments
Corporate debt securities		—		17,121		—		17,121
Commercial paper		—		5,980		—		5,980
Yankee securities		—		4,029		—		4,029
Treasury bills		1,999		—		—		1,999
Reverse repurchase agreements		—		37,000		—		37,000
Total	$	10,144	$	75,522	$	—	$	85,666

	As of December 31, 2021
	Quoted
	Prices		Significant		Significant
	in Active		Observable		Unobservable
	Markets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Cash equivalents:
Money market funds	$	1,853	$	—	$	—	$	1,853
Short-term investments:
Reverse repurchase agreements		—		39,000		—		39,000
Total	$	1,853	$	39,000	$	—	$	40,853