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Note 4 - Segment Reporting - Segmented Operations Information (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Total assets $ 18,390,628   $ 18,813,406
Cost and expenses 578,455 $ 508,571  
Income from operations (436,606) (342,809)  
Oil and Gas [Member]      
Revenue 82,500 49,195  
Timber [Member]      
Revenue 2,275 1,901  
Operating Segments [Member]      
Total assets 18,390,628   18,813,406
Total segment revenues 141,849 165,762  
Capital Expenditures 0   20,737
Cost and expenses 14,349 10,195  
Depreciation and Depletion 1,086   4,946
Income from operations 127,500 155,567  
Unallocated other expense before income taxes (513,889) (472,418)  
Income (loss) before income taxes (386,389) (316,851)  
Operating Segments [Member] | Oil And Gas Segment [Member]      
Cost and expenses 10,366 8,938  
Depreciation and Depletion 0   0
Income from operations 72,134 40,257  
Operating Segments [Member] | Oil And Gas Segment [Member] | Oil and Gas [Member]      
Revenue 82,500 49,195  
Operating Segments [Member] | Timber Segment [Member]      
Total assets 2,250,596   2,250,616
Capital Expenditures 0   20,737
Cost and expenses 3,983 1,257  
Depreciation and Depletion 20   685
Income from operations (1,708) 644  
Operating Segments [Member] | Timber Segment [Member] | Timber [Member]      
Revenue 2,275 1,901  
Operating Segments [Member] | Surface Segment [Member]      
Capital Expenditures 0   0
Cost and expenses 0 0  
Income from operations 57,074 114,666  
Operating Segments [Member] | Surface Segment [Member] | Surface Leases [Member]      
Surface revenue 57,074 $ 114,666  
Operating Segments [Member] | Corporate Segment [Member]      
Total assets 16,140,032   16,562,790
Capital Expenditures 0   0
Depreciation and Depletion $ 1,066   $ 4,261