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Note 4 - Segment Reporting - Segmented Operations Information (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Total assets $ 18,032,901   $ 18,032,901   $ 17,687,590
Total segment revenues 370,380 $ 310,214 536,142 $ 492,130  
Cost and expenses 268,278 615,543 776,849 799,497  
Income from operations 102,102 (305,329) (240,707) (307,367)  
Oil and Gas [Member]          
Revenue 101,361 141,714 150,556 224,142  
Timber [Member]          
Revenue 10,782 88,637 12,683 110,379  
Operating Segments [Member]          
Total assets 18,032,901   18,032,901   17,687,590
Capital Expenditures     20,735   29,296
Total segment revenues 370,380 310,214 536,142 492,130  
Depreciation and Depletion     2,215   5,922
Cost and expenses 13,222 17,565 23,417 28,664  
Income from operations 357,158 292,649 512,725 463,466  
Unallocated other expense before income taxes (219,521) (593,870) (691,938) (761,096)  
Income (loss) before income taxes 137,637 (301,221) (179,213) (297,630)  
Operating Segments [Member] | Oil And Gas Segment [Member]          
Depreciation and Depletion     0   0
Cost and expenses 10,291 14,615 19,229 20,350  
Income from operations 91,070 127,099 131,327 203,792  
Operating Segments [Member] | Oil And Gas Segment [Member] | Oil and Gas [Member]          
Revenue 101,361 141,714 150,556 224,142  
Operating Segments [Member] | Timber Segment [Member]          
Total assets 2,251,215   2,251,215   2,230,564
Capital Expenditures     20,735   16,461
Depreciation and Depletion     85   883
Cost and expenses 2,706 2,950 3,963 3,185  
Income from operations 8,076 85,687 8,720 107,194  
Operating Segments [Member] | Timber Segment [Member] | Timber [Member]          
Revenue 10,782 88,637 12,683 110,379  
Operating Segments [Member] | Corporate Segment [Member]          
Total assets 15,781,686   15,781,686   15,457,026
Capital Expenditures     0   12,271
Depreciation and Depletion     2,130   5,039
Operating Segments [Member] | Surface Segment [Member]          
Capital Expenditures     0   $ 564
Cost and expenses 225 0 225 5,129  
Income from operations 258,012 79,863 372,678 152,480  
Operating Segments [Member] | Surface Segment [Member] | Surface Leases [Member]          
Surface revenue $ 258,237 $ 79,863 $ 372,903 $ 157,609