Marketable Securities

6 Months Ended

Jun. 30, 2019

Investments Debt And Equity Securities [Abstract]

Marketable Securities

Note 3. Marketable Securities

The Company’s marketable securities consisted of the following:

	June 30, 2019
	Amortized Cost Basis			Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Marketable securities:
Short-term
Money market accounts	$	3,722			—		—		$	3,722
United States Treasury		999			—		—			999
U.S. government agency securities		797			1		—			798
Corporate debt securities		16,014			22		(13	)		16,023
Less: Cash equivalents		(3,722	)		—		—			(3,722	)
Total short-term marketable securities		17,810			23		(13	)		17,820
Corporate debt securities		11,561			136		—			11,697
Total long-term marketable securities		11,561			136		—			11,697
Total marketable securities	$	29,371		$	159	$	(13	)	$	29,517

	December 31, 2018
	Amortized Cost Basis			Unrealized Gains		Unrealized Losses			Aggregate Fair Value
	(in thousands)
Marketable securities:
Short-term
Money market accounts	$	2,692		$	—	$	—		$	2,692
United States Treasury		990			—		—			990
U.S. government agency securities		790			—		—			790
Corporate debt securities		22,613			1		(96	)		22,518
Less: Cash equivalents		(2,692	)		—		—			(2,692	)
Total short-term marketable securities		24,393			1		(96	)		24,298
Corporate debt securities		6,383			11		(8	)		6,386
Total long-term marketable securities		6,383			11		(8	)		6,386
Total marketable securities	$	30,776		$	12	$	(104	)	$	30,684

Management determined that the gross unrealized losses of $13,000 on the Company’s marketable securities as of June 30, 2019 were temporary in nature. Gross unrealized losses on the Company’s marketable securities were $104,000 as of December 31, 2018. The Company currently does not intend to sell these securities prior to maturity and does not consider these investments to be other-than-temporarily impaired as of June 30, 2019.