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Note 8 - Accrued Expenses
12 Months Ended
Nov. 30, 2016
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
(8)
Accrued Expenses
 
Major components of accrued expenses are:
 
 
 
November 30, 2016
 
 
November 30, 2015
 
Salaries, wages, and commissions
  $
542,449
    $
530,667
 
Accrued warranty expense
   
134,373
     
176,531
 
Other
   
342,234
     
484,166
 
    $
1,019,056
    $
1,191,364