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Organization and Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
Accounting Policies [Abstract]        
Cash and Cash Equivalents $ 15,227,599 $ 23,242,090 $ 8,166,402 $ 4,216,592
Restricted Cash 4,738,726 4,649,159 5,125,433 5,132,897
Cash, Cash Equivalents And Restricted Cash $ 19,966,325 $ 27,891,249 $ 13,291,835 $ 9,349,489