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Note 6 - Segment Reporting - Segmented Operations Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Revenues, Total	$ 216,808	$ 394,033	$ 370,283	$ 740,728
Total costs, expenses and (gains)	218,433	166,232	282,548	(535,054)
Income from operations	(1,625)	227,801	87,735	1,275,782
Income before income Taxes	27,862	240,755	143,746	1,301,658
Total assets	15,705,689		15,705,689		$ 15,602,001
Capital Expenditures			17,970		55,438
Oil and Gas [Member]
Revenues from customers	143,036	160,731	233,932	281,768
Timber [Member]
Revenues from customers		176,559	14,481	355,008
Operating Segments [Member]
Revenues, Total	216,808	394,033	370,283	740,728
Total costs, expenses and (gains)	14,445	35,584	33,944	79,824
Income from operations	202,363	358,449	336,339	660,904
Other income (expense) before income taxes	(174,501)	(117,694)	(192,593)	640,754
Income before income Taxes	27,862	240,755	143,746	1,301,658
Total assets	15,705,689		15,705,689		15,602,001
Depreciation and Depletion			1,120		3,885
Operating Segments [Member] | Oil And Gas Segment [Member]
Total costs, expenses and (gains)	13,643	13,287	28,167	29,943
Income from operations	129,393	147,444	205,765	251,825
Depreciation and Depletion
Operating Segments [Member] | Oil And Gas Segment [Member] | Oil and Gas [Member]
Revenues from customers	143,036	160,731	233,932	281,768
Operating Segments [Member] | Timber Segment [Member]
Total costs, expenses and (gains)	687	14,784	5,084	35,378
Income from operations	(687)	161,775	9,397	319,630
Total assets	2,180,251		2,180,251		2,162,390
Capital Expenditures			17,970		45,067
Depreciation and Depletion			109		1,858
Operating Segments [Member] | Timber Segment [Member] | Timber [Member]
Revenues from customers		176,559	14,481	355,008
Operating Segments [Member] | Corporate Segment [Member]
Total assets	13,525,438		13,525,438		13,439,611
Capital Expenditures					5,471
Depreciation and Depletion			1,011		2,027
Operating Segments [Member] | Surface Segment [Member]
Revenues, leases	73,772	56,743	121,870	103,952
Total costs, expenses and (gains)	115	7,513	693	14,503
Income from operations	$ 73,657	$ 49,230	121,177	$ 89,449
Capital Expenditures					$ 4,900

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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