Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Significant Accounting Policies - Schedule of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
Accounting Policies [Abstract]        
Cash $ 423,443 $ 206,510    
Money market fund 55,235,903 62,330,985    
Cash and cash equivalents 55,659,346 62,537,495    
Restricted cash 158,991    
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows $ 55,659,346 $ 62,696,486 $ 36,797,469 $ 15,192,257