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Consolidated Statements of Comprehensive Income/(Loss) (Unaudited) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Statement of Comprehensive Income [Abstract]        
Net income (loss) available to common stockholders, as reported $ 961,042 $ (4,175,353) $ 11,144,342 $ (10,526,370)
Other comprehensive (loss) income:        
Unrealized foreign currency translation (loss) income (55,303) 65,949 (71,793) 46,130
Comprehensive income/(loss) $ 905,739 $ (4,109,404) $ 11,072,549 $ (10,480,240)