Summary of Significant Accounting Policies - Schedule of Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
|12 Months Ended|
Dec. 31, 2017
Dec. 31, 2016
|Fair value of warrant liability||$ 21,855,723|
|Fair value of warrant liability||$ 1,794,396|
Amount of expense (income) related to adjustment to fair value of warrant liability.
Reference 1: http://www.xbrl.org/2003/role/presentationRef