Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2020

Marketable Securities [Abstract]

Schedule of Available for Sale

Debt securities classified as available for sale consisted of:

June 30, 2020
(in thousands)

Securities	Amortized Cost		Gross Unrealized Gains /(Losses)		Gross Unrealized Gains /(Losses)			Fair Value		Marketable Securities
U.S. Treasury notes	$	1,772	$	—	$	(4	)	$	1,768	$	1,768
U.S. Government mortgage backed securities		2,001		—		(4	)		1,997		1,997
Corporate bonds		2,565		—		71			2,636		2,636
Totals	$	6,338	$	—	$	63		$	6,401	$	6,401

The following presents available-for-sale securities’ gross unrealized losses and fair value aggregated by the short- and long-term maturity.

June 30, 2020
(in thousands)

	Less than 12 Months				12 Months or More					Total
Securities	Fair Value		Gross Unrealized Gains		Fair Value		Gross Unrealized Gains			Fair Value		Gross Unrealized Gains
U.S. Treasury notes	$	605	$	—	$	1,163	$	(4	)	$	1,768	$	(4	)
U.S. Government mortgage backed securities		—		—		1,997		(4	)		1,997		(4	)
Corporate bonds		488		—		2,148		71			2,636		71
Totals	$	1,093	$	—	$	5,308	$	63		$	6,401	$	63