Note 7 - Investments in Equity Securities (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]

	2020
	Cost		Market
Stock	$	949,293	$	1,534,400
Less cost				949,293
Gross unrealized gains on equity securities				585,107
Deferred income taxes				146,736
Net unrealized gains on equity securities			$	438,371

Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

	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	$	1,534,400	$	-	$	-	$	1,534,400