Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Escrowed Cash Receivable (Details)

v3.8.0.1
Significant Accounting Policies - Escrowed Cash Receivable (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Aug. 14, 2017
Dec. 31, 2016
Accounting Policies [Abstract]            
Initial gross proceeds $ 25,000,000 $ 0 $ 25,000,000 $ 0    
Escrowed cash receivable $ 3,750,803   $ 3,750,803   $ 3,750,000 $ 0