Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2020

Investments Debt And Equity Securities [Abstract]

Summary of Marketable Securities

The Company’s marketable securities consisted of the following:

	March 31, 2020
	Amortized Cost Basis			Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Marketable securities:
Short-term
Money market accounts	$	3,943		$	—	$	—		$	3,943
Corporate debt securities		18,048			31		(51	)		18,028
Less: Cash equivalents		(3,943	)		—		—			(3,943	)
Total short-term marketable securities		18,048			31		(51	)		18,028
Long-term
Corporate debt securities		42,484			125		(318	)		42,291
U.S. government agency securities		1,000			3		—			1,003
Total long-term marketable securities		43,484			128		(318	)		43,294
Total marketable securities	$	61,532		$	159	$	(369	)	$	61,322

	December 31, 2019
	Amortized Cost Basis			Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Marketable securities:
Short-term
Money market accounts	$	4,700		$	—	$	—		$	4,700
Corporate debt securities		17,962			43		(2	)		18,003
Less: Cash equivalents		(6,399	)		—		—			(6,399	)
Total short-term marketable securities		16,263			43		(2	)		16,304
Corporate debt securities		41,861			116		(30	)		41,947
Total long-term marketable securities		41,861			116		(30	)		41,947
Total marketable securities	$	58,124		$	159	$	(32	)	$	58,251