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).|
Information about derivative transactions entered into in connection with convertible debt instruments which may be settled in cash upon conversion, including partial cash settlement. Descriptions include the terms of such transactions, how the derivative transaction(s) relate to the convertible debt instrument, the number of underlying shares and the reasons for entering into the derivative transaction(s). An example of a derivative transaction entered into in connection with the issuance of the convertible debt instrument is the purchase of call options that are expected to substantially offset changes in the fair value of the conversion option.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef