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Note 4 - Inventory (Tables)
6 Months Ended
May 31, 2016
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
 
May 31, 2016
 
 
November 30, 2015
 
Raw materials
  $ 9,354,426     $ 10,058,894  
Work in process
    531,369       458,526  
Finished goods
    7,560,530       8,204,843  
    $ 17,446,325     $ 18,722,263  
Less: Reserves
    (2,953,356 )     (3,023,179 )
    $ 14,492,969     $ 15,699,084