Note 7 - Investments in Equity Securities

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

7.  INVESTMENTS IN EQUITY SECURITIES

Investments in equity securities as of December 31, 2022 and 2021 are summarized in the table below:

					UNREALIZED			REALIZED
	BALANCE		ACQUISITIONS,		GAINS			GAINS		BALANCE
	AT		DISPOSITIONS		(LOSSES)			INCLUDED		AT END
	BEGINNING		AND		INCLUDED			IN		OF
	OF YEAR		SETTLEMENTS		IN EARNINGS			EARNINGS		PERIOD
Year ended December 31, 2021	$	1,534,400	$	19,698	$	(188,615	)	$	152,761	$	1,518,244
Year ended December 31, 2022	$	1,518,244	$	-	$	(860,273	)	$	-	$	657,971

Investments by fair value level in the hierarchy as of December 31, 2022 and December 31, 2021 are as follows:

	Quoted Market Prices in Attractive Markets (Level 1)		Models with Significant Observable Market Parameters (Level 2)		Unobservable Inputs that are not Corroborated by Market Data (Level 3)		Total Carrying Value in the Balance Sheet
Common stock as of December 31, 2022	$	657,971	$	-	$	-	$	657,971
Common stock as of December 31, 2021	$	1,518,244	$	-	$	-	$	1,518,244