Project assets (Tables)
 3 Months Ended
Jan. 31, 2016
Project assets [Abstract]  
Project assets [Table Text Block]
Project assets as of January 31, 2016 and October 31, 2015 consisted of the following:

 
January 31, 2016
 
October 31, 2015
Current project assets
 
8,939

 
5,260

Long-term project assets
 
13,059

 
6,922

Project assets
 
21,998

 
12,182