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Marketable Equity Securities (Details 1) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Sales of marketable equity securities     $ (110,355) $ (571,741)
Realized gains on marketable equity securities     14,708 86,741
Unrealized losses on marketable equity securities $ 336,781 $ 272,689 (28,578) $ 156,647
Common Stock [Member]        
Balance at beginning     639,647  
Sales of marketable equity securities     (110,355)  
Realized gains on marketable equity securities     14,708  
Unrealized losses on marketable equity securities     52,313  
Balance at end $ 596,313   $ 596,313