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Note 4 - Segment Reporting - Segmented Operations Information (Details) - USD ($)
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Total assets $ 17,061,899   $ 17,055,087
Capital Expenditures 4,505 $ 22,669  
Revenues, Total 181,918 154,876  
Cost and expenses 183,955 (293,451)  
Income from operations (2,037) 448,327  
Oil and Gas [Member]      
Oil and gas 82,429 50,145  
Timber [Member]      
Oil and gas 21,743 53,527  
Operating Segments [Member]      
Total assets 17,061,899 17,055,087  
Depreciation and Depletion 645 2,590  
Revenues, Total 181,918 154,876  
Cost and expenses 11,099 9,179  
Income from operations 170,819 145,697  
Unallocated other income (expense) before income taxes (167,226) 307,296  
Income before income taxes 3,593 452,993  
Timber Segment [Member] | Operating Segments [Member]      
Total assets 2,219,352 2,214,985  
Capital Expenditures 4,505 18,606  
Depreciation and Depletion 138 563  
Cost and expenses 234 958  
Income from operations 21,509 52,569  
Timber Segment [Member] | Operating Segments [Member] | Timber [Member]      
Oil and gas 21,743 53,527  
Oil And Gas Segment [Member] | Operating Segments [Member]      
Depreciation and Depletion 0 0  
Cost and expenses 5,736 8,221  
Income from operations 76,693 41,924  
Oil And Gas Segment [Member] | Operating Segments [Member] | Oil and Gas [Member]      
Oil and gas 82,429 50,145  
Corporate Segment [Member] | Operating Segments [Member]      
Total assets 14,842,547 14,840,102  
Capital Expenditures 0 0  
Depreciation and Depletion 507 2,027  
Surface Segment [Member] | Operating Segments [Member]      
Capital Expenditures 0 4,063  
Cost and expenses   0  
Income from operations 72,617 51,204  
Surface Segment [Member] | Operating Segments [Member] | Surface Leases [Member]      
Operating Lease, Lease Income, Total $ 77,746 $ 51,204