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Investments - Available-for-Sale (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Investments - Available-for-Sale    
Amortized Cost $ 14,549,799 $ 10,801,836
Unrealized Gains 26,401 17,415
Unrealized Loss (611) (1,192)
Fair Value $ 14,575,589 $ 10,818,059