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Note 5 - Inventory (Tables)
 6 Months Ended
May 31, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
 
May 31, 2017
 
 
November 30, 2016
 
Raw materials
   $
9,400,811
    $
8,568,624
 
Work in process
    
420,553
     
509,198
 
Finished goods
    
6,645,239
     
7,054,736
 
    $
16,466,603
    $
16,132,558
 
Less: Reserves
    
(2,511,320
 )    
(2,603,206
 )
    $
13,955,283
    $
13,529,352