Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2019

Investments, Debt and Equity Securities [Abstract]

Schedule of available-for-sale marketable securities and cash and cash equivalents

Available-for-sale marketable securities and cash and cash equivalents as of September 30, 2019 and December 31, 2018 consist of the following (in thousands):

	September 30, 2019
	Amortized Cost Value		Gross  Unrealized  Gains		Gross  Unrealized  Losses			Fair Value
Cash and cash equivalents:
Cash	$	42,616	$	—	$	—		$	42,616
Money market funds	46,309		—		—			46,309
Total	$	88,925	$	—	$	—		$	88,925
Marketable securities:
Domestic corporate debt securities	$	47,271	$	19	$	(1	)	$	47,289
Domestic corporate commercial paper	16,945		4		—			16,949
Agency bonds	15,013		—		—			15,013
Total	$	79,229	$	23	$	(1	)	$	79,251

 

	December 31, 2018
	Amortized Cost Value		Gross  Unrealized  Gains		Gross  Unrealized  Losses			Fair Value
Cash and cash equivalents:
Cash	$	20,448	$	—	$	—		$	20,448
Money market funds	38,873		—		—			38,873
Total	$	59,321	$	—	$	—		$	59,321
Marketable securities:
Domestic corporate debt securities	$	132,886	$	—	$	(530	)	$	132,356
Agency bonds	45,009		—		(225		)	44,784
Total	$	177,895	$	—	$	(755	)	$	177,140