Fair Value Measurements of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Summary of Financial Instruments

Summary of Financial Instruments

The following is a summary of financial instruments (in thousands):

	September 30,
	2020
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Estimated Fair Values
Available-for-sale securities:
Money market funds	$	2,544	$	—	$	—		$	2,544
Commercial paper		1,749		—		—			1,749
Corporate bonds		21,080		85		(1	)		21,164
Total available-for-sale securities	$	25,373	$	85	$	(1	)	$	25,457
Reported in:
Cash and cash equivalents								$	2,544
Short-term investments									18,183
Other assets									4,730
Total available-for-sale securities								$	25,457

	December 31,
	2019
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Estimated Fair Values
Available-for-sale securities:
Money market funds	$	2,027	$	—	$	—		$	2,027
Commercial paper		6,965		—		(3	)		6,962
Corporate bonds		12,943		1		(13	)		12,931
Total available-for-sale securities	$	21,935	$	1	$	(16	)	$	21,920
Reported in:
Cash and cash equivalents								$	4,275
Short-term investments									9,475
Other assets									8,170
Total available-for-sale securities								$	21,920

Summary of Contractual Maturities of Available-for-sale Securities

The contractual maturities of available-for-sale securities are presented in the following table (in thousands):

	September 30,
	2020
	Amortized Cost Basis		Estimated Fair Value
Due in one year or less	$	20,662	$	20,727
Due between one to two years		4,711		4,730
	$	25,373	$	25,457

Schedule of Financial Assets Measured at Fair Value on Recurring Basis

Financial assets measured at fair value on a recurring basis were as follows (in thousands):

	Fair Value Measurement at Reporting Date Using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
As of September 30, 2020
Financial assets - available-for-sales securities
Money market funds	$	2,544	$	—	$	—	$	2,544
Commercial paper		—		1,749		—		1,749
Corporate bonds		—		21,164		—		21,164
Total financial assets - available-for-sales securities	$	2,544	$	22,913	$	—	$	25,457
As of December 31, 2019
Financial assets - available-for-sales securities
Money market funds	$	2,027	$	—	$	—	$	2,027
Commercial paper		—		6,962		—		6,962
Corporate bonds		—		12,931		—		12,931
Total financial assets - available-for-sales securities	$	2,027	$	19,893	$	—	$	21,920