Cash, Cash Equivalents and Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2017

Investments in Marketable Securities

Investments in marketable securities consisted of the following at March 31, 2017 (in thousands):

	March 31, 2017
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Marketable securities:
U.S. Government and agency securities	$	402	$	—	$	—		$	402
Corporate and other debt securities		11,779		1		(2	)		11,778
Total	$	12,181	$	1	$	(2	)	$	12,180

Investments in marketable securities consisted of the following at December 31, 2016 (in thousands):

	December 31, 2016
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Marketable securities:
U.S. Government and agency securities	$	807	$	—	$	—		$	807
Corporate and other debt securities		18,745		2		(7	)		18,740
Total	$	19,552	$	2	$	(7	)	$	19,547