Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of Company's Classified Assets Measured at Fair Value on Recurring Basis

At June 30, 2020 and December 31, 2019, the Company has classified assets measured at fair value on a recurring basis as follows (in thousands):

	Fair Value Measurements at Reporting Date Using
	June 30,		Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
Description	2020		(Level 1)		(Level 2)		(Level 3)
Money market funds	$	17,852	$	17,852	$	—	$	—
Commercial paper (included in marketable securities)		32,948		—		32,948		—
Corporate debt securities (included in marketable securities)		43,831		—		43,831		—
U.S. government agency securities and treasuries		1,006		—		1,006		—
Total	$	95,637	$	17,852	$	77,785	$	—

	Fair Value Measurements at Reporting Date Using
	December 31,		Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
Description	2019		(Level 1)		(Level 2)		(Level 3)
Money market funds	$	3,240	$	3,240	$	—	$	—
Commercial paper (included in cash and cash equivalents)		4,249		—		4,249		—
Commercial paper (included in marketable securities)		20,501		—		20,501		—
Corporate debt securities (included in cash and cash equivalents)		6,005		—		6,005		—
Corporate debt securities (included in marketable securities)		71,383		—		71,383		—
U.S. government agency securities and treasuries		9,005		—		9,005		—
Total	$	114,383	$	3,240	$	111,143	$	—