Quarterly report pursuant to Section 13 or 15(d)

Warrants (Narrative) (Details)

v3.10.0.1
Warrants (Narrative) (Details) - $ / shares
9 Months Ended
Sep. 30, 2018
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
Class of Warrant or Right [Line Items]        
Number of warrants, Outstanding 6,899,609 7,099,609 5,288,466 5,452,691
Warrant expiration date, start Oct. 16, 2018      
Warrant expiration date, end Apr. 17, 2023      
Average remaining contractual life of warrants outstanding 3 years 4 months 24 days      
Probability of entering into a fundamental transaction 5.00%      
Maximum [Member]        
Class of Warrant or Right [Line Items]        
Exercise price $ 12.80      
Minimum [Member]        
Class of Warrant or Right [Line Items]        
Exercise price $ 2.85