Short-Term Investments (Tables)

12 Months Ended

Dec. 31, 2020

Short-Term Investments

Schedule of short term investments

The following table summarizes the short-term investments held at December 31, 2020 and 2019 (in thousands):

			Gross Unrealized		Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
December 31, 2020
Reverse repurchase agreements	$	20,000	$	—	$	—	$	20,000
Total	$	20,000	$	—	$	—	$	20,000

			Gross Unrealized		Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
December 31, 2019
Commercial paper	$	1,993	$	—	$	—	$	1,993
Corporate debt securities		3,352		—		—		3,352
Reverse repurchase agreements		21,000		—		—		21,000
Total	$	26,345	$	—	$	—	$	26,345