MARKETABLE SECURITIES (Tables)

6 Months Ended

Jun. 30, 2021

Marketable Securities

Marketable securities as of June 30, 2021 and December 31, 2020 were composed of:

Marketable securities as of June 30, 2021 and December 31, 2020 were composed of: 

	June 30, 2021
	Cost Basis		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Fixed income mutual funds	$	12,925,000	$	38,000	$	—		$	12,963,000
Corporate bonds and notes		1,764,000		—		(2,000	)		1,762,000
Total marketable securities	$	14,689,000	$	38,000	$	(2,000	)	$	14,725,000

	December 31, 2020
	Cost Basis		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Certificates of deposit	$	3,534,000	$	7,000	$	—		$	3,541,000
Fixed income mutual funds		11,255,000		80,000		—			11,335,000
Corporate bonds and notes		4,500,000		18,000		(28,000	)		4,490,000
Total marketable securities	$	19,289,000	$	105,000	$	(28,000	)	$	19,366,000