XML 32 R29.htm IDEA: XBRL DOCUMENT v2.4.1.9
Note 7 - Product Warranty (Tables)
12 Months Ended
Nov. 30, 2014
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
 
 
November 30, 2014
 
 
November 30, 2013
 
Balance, beginning
  $ 220,719     $ 578,864  
Settlements / adjustments
    (421,787 )     (605,281 )
Warranties issued
    435,334       247,136  
Balance, ending
  $ 234,266     $ 220,719