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Note 4 - Inventory
3 Months Ended
Feb. 29, 2016
Notes to Financial Statements  
Inventory Disclosure [Text Block]
 
4)
Inventory
 
Major classes of inventory are:
 
 
 
February 29, 2016
 
 
November 30, 2015
 
Raw materials
  $ 9,696,375     $ 10,058,894  
Work in process
    256,922       458,526  
Finished goods
    7,811,699       8,204,843  
    $ 17,764,996     $ 18,722,263  
Less: Reserves
    (3,080,791 )     (3,023,179 )
    $ 14,684,205     $ 15,699,084