Annual report pursuant to Section 13 and 15(d)

Derivative Liability (Details Textual)

Derivative Liability (Details Textual)
12 Months Ended
Dec. 31, 2018
Derivative Liability (Textual)  
Derivative liability, description The Subordinated Notes and the 2016 Convertible Notes included default provisions that required payment of significant penalties in the case of a default event (greater than 10% of the principal).