Investments (Tables)

6 Months Ended

Jun. 30, 2020

Investments Debt And Equity Securities [Abstract]

Summary of Fair Value of Available for Sale Investments

As of June 30, 2020 and December 31, 2019, the fair value of available-for-sale investments by type of security was as follows:

	June 30, 2020
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss		Fair Value
Investments:
Agency bonds	$	1,756	$	—	$	—	$	1,756
	$	1,756	$	—	$	—	$	1,756

	December 31, 2019
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss		Fair Value
Investments:
Corporate notes	$	5,489	$	2	$	—	$	5,491
Commercial paper		7,470		6		—		7,476
	$	12,959	$	8	$	—	$	12,967