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Note 4 - Segment Reporting - Segmented Operations Information (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Total assets $ 18,886,761   $ 18,886,761   $ 18,847,237
Cost of Goods Sold (23,733) $ 381,306 212,301 $ 959,761  
General & administrative expense 150,795 503,118 361,476 1,066,159  
Depreciation and depletion     1,687   4,352
Depreciation, Total 817 1,065 1,687 2,130  
Gain on Sale of Land 189,210 140,582 189,210 140,582  
Income from operations 159,669 646,128 271,818 209,522  
Miscellaneous Income 67 13,747 68 13,747  
Interest Income 74,481 50,881 168,078 101,099  
Income (loss) before income taxes 234,217 710,756 439,964 324,368  
Operating Segments [Member]          
Revenues 135,936 1,027,434 484,119 1,169,283  
Total Gross Profit 122,071 1,009,729 445,771 1,137,229  
Cost of Goods Sold 13,865 17,705 38,348 32,054  
General & administrative expense 150,795 503,118 361,476 1,066,159  
Gross Profit 122,071 1,009,729 445,771 1,137,229  
Depreciation, Total 817 1,065 1,687 2,130  
Gain on Sale of Land (189,210) (140,582) (189,210) (140,582)  
Income from operations 159,669 646,128 271,818 209,522  
Miscellaneous Income 67 13,747 68 13,747  
Interest Income 74,481 50,881 168,078 101,099  
Income (loss) before income taxes 234,217 710,756 439,964 324,368  
Operating Segments [Member] | Timber Segment [Member]          
Total assets 2,250,525   2,250,525   2,250,525
Revenues 0 0 0 2,275  
Total Gross Profit (972) (4,838) (4,745) (6,546)  
Cost of Goods Sold 972 4,838 4,745 8,821  
Depreciation and depletion     0   91
Gross Profit (972) (4,838) (4,745) (6,546)  
Operating Segments [Member] | Oil And Gas Segment [Member]          
Revenues 57,488 161,148 325,996 243,648  
Total Gross Profit 44,595 148,281 292,393 220,415  
Cost of Goods Sold 12,893 12,867 33,603 23,233  
Depreciation and depletion     0   0
Gross Profit 44,595 148,281 292,393 220,415  
Operating Segments [Member] | Surface Segment [Member]          
Revenues 78,448 866,286 158,123 923,360  
Total Gross Profit 78,448 866,286 158,123 923,360  
Cost of Goods Sold 0 0 0 0  
Depreciation and depletion     0   0
Gross Profit 78,448 $ 866,286 158,123 $ 923,360  
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]          
Total assets $ 16,636,236   16,636,236   16,596,712
Depreciation and depletion     $ 1,687   $ 4,261