Note 5 - Segment Reporting - Segmented Operations Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Revenues, Total	$ 180,391	$ 153,475
Total costs, expenses and (gains)	124,436	64,115
Income from operations	55,955	89,360
Income before income Taxes	73,830	115,884
Total assets	15,997,856		$ 15,862,530
Capital Expenditures			26,815
Oil and Gas [Member]
Revenues from customers	115,050	94,228
Timber [Member]
Revenues from customers	7,888	14,481
Operating Segments [Member]
Revenues, Total	180,391	153,475
Total costs, expenses and (gains)	14,188	19,499
Income from operations	166,203	133,976
Other income (expense) before income taxes	(92,373)	(18,092)
Income before income Taxes	73,830	115,884
Total assets		15,997,856	15,862,530
Depreciation and Depletion		368	2,362
Operating Segments [Member] | Oil And Gas Segment [Member]
Total costs, expenses and (gains)	11,737	14,524
Income from operations	103,313	79,704
Depreciation and Depletion
Operating Segments [Member] | Oil And Gas Segment [Member] | Oil and Gas [Member]
Revenues from customers	115,050	94,228
Operating Segments [Member] | Timber Segment [Member]
Total costs, expenses and (gains)	2,451	4,397
Income from operations	5,437	10,084
Total assets		2,188,460	2,188,594
Capital Expenditures			26,815
Depreciation and Depletion		134	611
Operating Segments [Member] | Timber Segment [Member] | Timber [Member]
Revenues from customers	7,888	14,481
Operating Segments [Member] | Corporate Segment [Member]
Total assets		13,809,396	13,673,936
Capital Expenditures
Depreciation and Depletion		234	1,751
Operating Segments [Member] | Surface Segment [Member]
Revenues, leases	57,453	44,766
Total costs, expenses and (gains)		578
Income from operations	$ 57,453	44,188
Capital Expenditures