Investments (Tables)

3 Months Ended

Mar. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Short-term investments available-for-sale

Our investments are classified as available-for-sale and consist of the following:

	March 31, 2021
	Amortized		Unrealized Gross				Aggregate
	Cost		Gains		Losses		Fair Value
Commercial paper	$	13,286	$	—	$	—	$	13,286
Corporate bonds	6,509		—		(3)		6,506
U.S. government securities	23,992		12		—		24,004
Short-term investments	$	43,787	$	12	$	(3)	$	43,796

	December 31, 2020
	Amortized		Unrealized Gross				Aggregate
	Cost		Gains		Losses		Fair Value
Commercial paper	$	13,275	$	—	$	—	$	13,275
Corporate bonds	6,543		—		(3)		6,540
U.S. government securities	23,997		32		—		24,029
Short-term investments	$	43,815	$	32	$	(3)	$	43,844