Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured at Fair Value on Recurring Basis

Financial assets measured at fair value on a recurring basis as of June 30, 2020 and December 31, 2019 were as follows (in thousands):

	As of June 30, 2020
	Level 1		Level 2		Level 3		Total
Investment securities:
U.S. government and agency obligations	$	27,509	$	2,506	$	—	$	30,015
Certificates of deposit		—		5,800		—		5,800
Commercial paper		—		2,998		—		2,998
Corporate debt securities		—		5,538		—		5,538
Total assets measured at fair value	$	27,509	$	16,842	$	—	$	44,351

	As of December 31, 2019
	Level 1		Level 2		Level 3		Total
Investment securities:
U.S. government and agency obligations	$	15,478	$	27,890	$	—	$	43,368
Certificates of deposit		—		5,982		—		5,982
Commercial paper		—		17,645		—		17,645
Corporate debt securities		—		11,071		—		11,071
Total assets measured at fair value	$	15,478	$	62,588	$	—	$	78,066