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Note 3 - Property and Equipment (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Gain (Loss) on Disposition of Oil and Gas and Timber Property, Total $ 406,220 $ 33,107
Depreciation, Total 507 234
Depletion, Total 77 134
Land [Member]    
Gain (Loss) on Disposition of Oil and Gas and Timber Property, Total $ 406,220 $ 33,107