Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 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 September 30, 2020 and December 31, 2019 (in thousands):

	September 30, 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	$	5,013	$	—	$	—	$	5,013
Commercial paper	—		1,875		—		1,875
Total cash and cash equivalents	5,013		1,875		—		6,888
Equity investments:
Mutual funds	248		—		—		248
Total equity investments	248		—		—		248
Debt securities available-for-sale:
Certificates of deposit	—		6,857		—		6,857
U.S. Treasury securities	13,484		—		—		13,484
Commercial paper	—		9,345		—		9,345
Corporate notes and bonds	—		20,529		—		20,529
Debt securities available-for-sale	13,484		36,731		—		50,215
Total assets measured at fair value	$	18,745	$	38,606	$	—	$	57,351

	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