XML 67 R57.htm IDEA: XBRL DOCUMENT v3.20.2
Marketable Equity Securities (Details 1) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Sales of marketable equity securities     $ (143,667) $ (571,741)
Realized gains on marketable equity securities     22,602 86,741
Unrealized losses on marketable equity securities $ (29,318) $ (330,150) (57,896) $ (173,503)
Common Stock [Member]        
Balance at beginning     639,647  
Sales of marketable equity securities     (143,667)  
Realized gains on marketable equity securities     22,602  
Unrealized losses on marketable equity securities     (132,106)  
Balance at end $ 386,476   $ 386,476