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Note 7 - Accrued Expenses
6 Months Ended
May 31, 2020
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
 
7
)
Accrued Expenses
 
Major components of accrued expenses are:
 
   
May 31, 2020
   
November 30, 2019
 
Salaries, wages, and commissions
  $
679,353
    $
555,201
 
Accrued warranty expense
   
268,233
     
203,185
 
Other
   
264,167
     
374,440
 
    $
1,211,753
    $
1,132,826