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Other current assets (Tables)
 12 Months Ended
Oct. 31, 2017
Other current assets [Abstract]  
Schedule of other current assets
Other current assets consist of the following (in thousands): 
 
  2017 2016 
        
Prepaid taxes $20 $871 
Prepaid expense  526  347 
Notes receivable, current portion  83  83 
Other  115  135 
        
Totals $744 $1,436