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

 
July 31, 2016
 
October 31, 2015
Current project assets
 
$
15,632

 
$
5,260

Long-term project assets
 
18,370

 
6,922

     Total Project assets
 
$
34,002

 
$
12,182