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Note 9 - Assets Available for Sale and Assets Held for Lease (Tables)
6 Months Ended
May 31, 2017
Notes Tables  
Disclosure of Long Lived Assets Held-for-sale [Table Text Block]
 
 
May 31, 2017
   
November 30, 2016
 
Ames, Iowa powder coat paint system
  $
70,000
    $
70,000
 
    $
70,000
    $
70,000