Note 3 - Other Income, Net - Schedule of Components of Other Income, Net (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net Realized and Unrealized Gain/(Loss) on Equity Securities	$ (256,894)	$ 85,724	$ 341,267	$ 235,113
Gain/(Loss) on Asset Sales	8,249	5,072	(184,806)	19,025
Interest Income	5,421	9,380	18,579	145,282
Agricultural Rental Income		5,600	5,600	5,600
Dividend Income	138,591	79	221,017	315
Income from Other Investments				13,548
Interest and Other Miscellaneous
Income/Expenses	5,179	(11,393)	(24,876)	(31,919)
Other Income/(Loss), Net	$ (99,454)	$ 94,462	$ 376,781	$ 386,964