Marketable Securities and Cash Equivalents

3 Months Ended

Mar. 31, 2019

Investments Debt And Equity Securities [Abstract]

Marketable Securities and Cash Equivalents

5. Marketable Securities and Cash Equivalents

The following table summarizes the Company’s marketable securities and cash equivalents as of March 31, 2019 and December 31, 2018:

	March 31, 2019
(in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Cash equivalents:
Money market funds	$	32,440	$	—	$	—	$	32,440
Total cash equivalents	$	32,440	$	—	$	—	$	32,440
Marketable securities:
Corporate debt securities	$	1,997	$	—	$	—	$	1,997
Commercial paper		16,930		—		—		16,930
Government securities		2,997		—		—		2,997
Total marketable securities	$	21,924	$	—	$	—	$	21,924
Total cash equivalents and marketable securities	$	54,364	$	—	$	—	$	54,364

	December 31, 2018
(in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Cash equivalents:
Money market funds	$	16,292	$	—	$	—		$	16,292
Commercial paper		1,998		—		—			1,998
Total cash equivalents	$	18,290	$	—	$	—		$	18,290
Marketable securities:
Commercial paper	$	31,766	$	—	$	—		$	31,766
Corporate debt securities		7,487		—		(8	)		7,479
Government securities		11,955		—		(1	)		11,954
Total marketable securities	$	51,208	$	—	$	(9	)	$	51,199