Cash Equivalents and Available for Sale Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2019

Cash and Cash Equivalents [Abstract]

Schedule of Cash Equivalents and Available-for-sale Marketable Securities

Cash equivalents and available-for-sale marketable securities consisted of the following as of March 31, 2019 and December 31, 2018 (in thousands):

	March 31, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses		Market Value
Cash equivalents:
Money market funds	$	5	$	–	$	–	$	5
Commercial paper		15,599		19		–		15,618
U.S. government debt securities		4,926		6		–		4,932
Total cash equivalents (1)		20,530		25		–		20,555
Short-term investments:
Commercial paper		1,708		6		–		1,714
Corporate debt securities		7,970		22		–		7,992
Total short-term investments		9,678		28		–		9,706
Total	$	30,208	$	53	$	–	$	30,261

(1) Included in cash and cash equivalents in the Company’s consolidated balance sheet as of March 31, 2019 in addition to $14.4 million of cash.

	December 31, 2018
	Amortized Cost		Unrealized Gains		Unrealized Losses			Market Value
Cash equivalents:
Money market funds	$	7	$	–	$	–		$	7
Commercial paper		20,648		30		–			20,678
U.S. government debt securities		3,224		2		–			3,226
Total cash equivalents (1)		23,879		32		–			23,911
Short-term investments:
Commercial paper		714		–		–			714
Corporate debt securities		5,444		5		(1	)		5,448
Total short-term investments		6,158		5		(1	)		6,162
Total	$	30,037	$	37	$	(1	)	$	30,073

(1) Included in cash and cash equivalents in the Company’s consolidated balance sheet as of December 31, 2018 in addition to $31.8 million of cash.