Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Reconciliation Of Changes In The Fair Value Of Liabilities) (Details)

v3.8.0.1
Fair Value Measurements (Reconciliation Of Changes In The Fair Value Of Liabilities) (Details) - Warrant Liabilities [Member] - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Balance $ 1,573,366 $ 2,739,163
Additions 6,738,701 4,364,110
Unrealized (gains) losses, net 7,594,162 (5,529,907)
Transfers out of level 3 (8,052,594)  
Balance $ 7,853,635 $ 1,573,366