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Project assets (Tables)
 6 Months Ended
Apr. 30, 2016
Project assets [Abstract]  
Project assets [Table Text Block]
Project assets as of April 30, 2016 and October 31, 2015 consisted of the following:

 
April 30, 2016
 
October 31, 2015
Current project assets
 
$
13,380

 
$
5,260

Long-term project assets
 
16,671

 
6,922

Project assets
 
$
30,051

 
$
12,182