Subsequent Event

9 Months Ended

Sep. 30, 2018

Subsequent Event [Abstract]

Subsequent event

7. Subsequent event

In letter agreements dated October 26, 2018, the secured note holders, representing a majority of the outstanding secured notes, agreed to extend the maturity date of all secured notes, issued under their respective note purchase agreements, from December 31, 2018 to December 31, 2019.