Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Schedule of Available for Sale

Debt securities classified as available for sale consisted of:

June 30, 2021

(in thousands)

Securities	Amortized Cost		Gross Unrealized Gains /(Losses)			Fair Value		Marketable Securities
U.S. Treasury notes	$	5,502	$	(76	)	$	5,426	$	5,426
U.S. Government mortgage-backed securities		4,401		288			4,689		4,689
Corporate bonds		6,432		(412	)		6,020		6,020
Totals	$	16,335	$	(200	)	$	16,135	$	16,135

December 31, 2020

(in thousands)

Securities	Amortized Cost		Gross Unrealized Gains /(Losses)			Fair Value		Marketable Securities
U.S. Treasury notes	$	5,746	$	(47	)	$	5,699	$	5,699
U.S. Government mortgage-backed securities		4,890		(52	)		4,838		4,838
Corporate bonds		5,288		52			5,340		5,340
Totals	$	15,924	$	(47	)	$	15,877	$	15,877

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

June 30, 2021

(in thousands)

	12 Months or More					Total
Securities	Fair Value		Gross Unrealized Gains			Fair Value		Gross Unrealized Gains
U.S. Treasury notes	$	5,502	$	(76	)	$	5,426	$	(76	)
U.S. Government mortgage-backed securities		4,401		288			4,689		288
Corporate bonds		6,432		(412	)		6,020		(412	)
Totals	$	16,335	$	(200	)	$	16,135	$	(200	)

December 31, 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	$	501	$	—	$	5,245	$	(47	)	$	5,699	$	(47	)
U.S. Government mortgage-backed securities		—		—		4,890		(52	)		4,838		(52	)
Corporate bonds		—		—		5,288		52			5,340		52
Totals	$	501	$	—	$	15,423	$	(47	)	$	15,877	$	(47	)