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Fair Value Measurements (Details 2) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Senior Notes due 2022 $ 27,279,898 $ 27,313,994
Level 1 [Member]    
Senior Notes due 2022 0 0
Level 2 [Member]    
Senior Notes due 2022 27,279,898 27,313,994
Level 3 [Member]    
Senior Notes due 2022 $ 0 $ 0