Note 4 - Segment Reporting - Segmented Operations Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Timber	$ 16,986,743		$ 16,986,743		$ 17,055,087
Total segment revenues	310,214	$ 211,306	492,130	$ 366,182
Cost and expenses	615,543	(21,526)	799,497	(314,977)
Income from operations	(305,329)	232,832	(307,367)	681,159
Oil and Gas [Member]
Revenue	141,714	99,202	224,142	149,347
Timber [Member]
Revenue	88,637	49,414	110,379	102,941
Operating Segments [Member]
Timber	16,986,743		16,986,743		17,055,087
Timber			29,297		22,669
Total segment revenues	310,214	211,306	492,130	366,182
Oil and gas			1,364		2,590
Cost and expenses	17,565	13,700	28,664	22,879
Income from operations	292,649	197,606	463,466	343,303
Unallocated other income (expense) before income taxes	(593,870)	40,013	(761,096)	347,309
Income (loss) before income taxes	(301,221)	237,619	(297,630)	690,612
Operating Segments [Member] | Oil And Gas Segment [Member]
Oil and gas			0		0
Cost and expenses	14,615	9,445	20,350	17,666
Income from operations	127,099	89,757	203,792	131,681
Operating Segments [Member] | Oil And Gas Segment [Member] | Oil and Gas [Member]
Revenue	141,714	99,202	224,142	149,347
Operating Segments [Member] | Timber Segment [Member]
Timber	2,231,273		2,231,273		2,214,985
Timber			16,462		18,606
Oil and gas			174		563
Cost and expenses	2,950	4,255	3,185	5,213
Income from operations	85,687	45,159	107,194	97,728
Operating Segments [Member] | Timber Segment [Member] | Timber [Member]
Revenue	88,637	49,414	110,379	102,941
Operating Segments [Member] | Corporate Segment [Member]
Timber	14,755,470		14,755,470		14,840,102
Timber			12,270		0
Oil and gas			1,190		2,027
Operating Segments [Member] | Surface Segment [Member]
Timber			565		$ 4,063
Cost and expenses	0		5,129	0
Income from operations	79,863	62,690	152,480	113,894
Operating Segments [Member] | Surface Segment [Member] | Surface Leases [Member]
Surface revenue	$ 79,863	$ 62,690	$ 157,609	$ 113,894