XML 44 R25.htm IDEA: XBRL DOCUMENT v3.19.3
Note 4 - Property and Equipment (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Gain (Loss) on Disposition of Oil and Gas and Timber Property, Total $ 80,876 $ 881,654
Depreciation, Total $ 507 $ 1,050 1,517 1,517
Depletion, Total     288 13,896
Land [Member]        
Gain (Loss) on Disposition of Oil and Gas and Timber Property, Total     $ 80,876 881,654
Land [Member] | Partially Owned Properties [Member]        
Gain (Loss) on Disposition of Oil and Gas and Timber Property, Total       $ 767,147
Investment Owned, Percent of Net Assets 16.00%   16.00%