Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurement

The following tables represent the financial instruments measured at fair value on a recurring basis in the financial statements of the Company and the valuation approach applied to each class of financial instruments at March 31, 2020 and December 31, 2019 (in thousands):

	March 31, 2020
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Cash and cash equivalents:
Money market funds	$	30,363	$	—	$	—	$	30,363
Total cash and cash equivalents	30,363		—		—		30,363
Equity investments:
Mutual funds	65		—		—		65
Total equity investments	65		—		—		65
Debt securities available-for-sale:
Certificates of deposit	—		6,409		—		6,409
U.S. Treasury securities	20,766		—		—		20,766
U.S. Agency securities	—		6,548		—		6,548
Commercial paper	—		1,997		—		1,997
Corporate notes and bonds	—		16,740		—		16,740
Debt securities available-for-sale	20,766		31,694		—		52,460
Total assets measured at fair value	$	51,194	$	31,694	$	—	$	82,888

	December 31, 2019
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Cash and cash equivalents:
Money market funds	$	43,745	$	—	$	—	$	43,745
Commercial paper	—		1,993		—		1,993
Corporate notes and bonds	—		1,006		—		1,006
Total cash and cash equivalents	43,745		2,999		—		46,744
Debt securities available-for-sale:
Certificates of deposit	—		5,663		—		5,663
U.S. Treasury securities	12,579		—		—		12,579
U.S. Agency securities	—		3,998		—		3,998
Commercial paper	—		2,491		—		2,491
Corporate notes and bonds	—		22,706		—		22,706
Debt securities available-for-sale	12,579		34,858		—		47,437
Total assets measured at fair value	$	56,324	$	37,857	$	—	$	94,181