Cash Equivalents and Available for Sale Marketable Securities

6 Months Ended

Jun. 30, 2019

Cash and Cash Equivalents [Abstract]

Cash Equivalents and Available for Sale Marketable Securities

5. CASH EQUIVALENTS AND AVAILABLE FOR SALE MARKETABLE SECURITIES

Cash equivalents and available-for-sale marketable securities consisted of the following as of June 30, 2019 and December 31, 2018 (in thousands):

	June 30, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses		Market Value
Cash equivalents:
Money market funds	$	37	$	–	$	–	$	37
Commercial paper		19,960		24		–		19,984
U.S. government debt securities		8,074		31		–		8,105
Total cash equivalents (1)		28,071		55		–		28,126
Short-term investments:
Corporate debt securities		12,318		24		–		12,342
Total short-term investments		12,318		24		–		12,342
Total	$	40,389	$	79	$	–	$	40,468

(1) Included in cash and cash equivalents in the Company’s consolidated balance sheet as of June 30, 2019 in addition to $17.8 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.

All investments in debt securities held as of June 30, 2019 and December 31, 2018 had maturities of less than one year. For the three and six months ended June 30, 2019, the Company recognized no material realized gains or losses on available-for-sale marketable securities.