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Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2021

Investments, All Other Investments [Abstract]

Schedule of Cash and Marketable Securities by Significant Investment Category

The following tables show the Company’s cash and cash equivalents and marketable securities and investments by significant investment category as of June 30, 2021, and December 31, 2020:

	2021
	Adjusted Cost		Unrealized Gain/(Loss)			Fair Value		Cash and Cash Equivalents		Marketable Securities		Investments
Cash and cash equivalents	$	6,497,000	$	-		$	6,497,000	$	6,497,000	$	-	$	-
Level 1				-
Money Market Funds		59,148,000		-			59,148,000		59,148,000		-		-
Marketable Securities		4,727,000		2,592,000			7,319,000		-		7,319,000		-
Level 2
Warrants		15,657,000		(6,117,000	)		9,540,000		-		-		9,540,000
Total	$	86,029,000	$	(3,525,000	)	$	82,504,000	$	65,645,000	$	7,319,000	$	9,540,000

	2020
	Adjusted Cost		Unrealized Gain/(Loss)		Fair Value		Cash and Cash Equivalents		Marketable Securities		Investment
Cash and cash equivalents	$	1,690,000	$	-	$	1,690,000	$	1,690,000	$	-	$	-
Level 1
Money Market Funds		3,493,000		-		3,493,000		3,493,000		-		-
Marketable Securities		5,641,000		3,495,000		9,136,000		-		9,136,000		-
Level 2
Warrants		700,000		356,000		1,056,000		-		-		1,056,000
Total	$	11,524,000	$	3,851,000	$	15,375,000	$	5,183,000	$	9,136,000	$	1,056,000