Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Details)

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Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
Accounting Policies [Abstract]        
Cash and cash equivalents $ 6,632,468 $ 7,306,507 $ 9,001,000 $ 4,105,000
Restricted cash included in current/long term assets 636,000 691,000 691,000 692,000
Cash, cash equivalents and restricted cash in the statement of cash flows $ 7,268,468 $ 7,997,937 $ 9,692,283 $ 4,797,060