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Note 4 - Inventory
3 Months Ended
Feb. 28, 2015
Notes to Financial Statements  
Inventory Disclosure [Text Block]
4)
Inventory
 
Major classes of inventory are:
 
 
 
February 28, 2015
 
 
November 30, 2014
 
Raw materials
  $ 9,159,541     $ 10,037,055  
Work in process
    639,035       467,110  
Finished goods
    10,079,813       8,504,062  
    $ 19,878,389     $ 19,008,227  
Less: Reserves
    (3,745,213 )     (3,918,947 )
    $ 16,133,176     $ 15,089,280