Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Measurements

Summary of the valuation of financial instrument pricing levels

	Total		Level 1		Level 2		Level 3
September 30, 2020
Equity investments	$	1,197,000	$	1,197,000	$	—	$	—
December 31, 2019
Equity investments	$	1,182,000	$	1,182,000	$	—	$	—

Schedule of gains and losses on equity investments

	Three Months				Nine Months
	Ended September 30,				Ended September 30,
	2020		2019		2020		2019
Net gains recognized during the period on equity investments	$	54,000	$	12,000	$	4,000	$	125,000
Less: net gains recognized during the period on equity investments sold during the period		14,000		—		37,000		—
Unrealized gains (losses)recognized during the period on equity investments still held at period end	$	40,000	$	12,000	$	(33,000)	$	125,000