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Basis of Presentation and Significant Accounting Policies - Schedule of Cash and Restricted Cash (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Jun. 30, 2018
Dec. 31, 2017
Accounting Policies [Abstract]        
Cash and cash equivalents $ 5,321,344 $ 2,317,659 $ 3,051,593 $ 4,188,623
Restricted Cash 50,266 130,326 141,351 256,005
Total $ 5,371,610 $ 2,447,985 $ 3,192,944 $ 4,444,628