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Note 5 - Contracts in Progress
 12 Months Ended
Nov. 30, 2019
Notes to Financial Statements  
Long-term Contracts or Programs Disclosure [Text Block]
(
5
)
Contracts in Progress
 
Amounts included in the consolidated financial statements related to uncompleted contracts are as follows:
 
   
Cost and Profit in
    
Billings in Excess of
  
   
Excess of Billings
    
Costs and Profit
  
November 30, 2019
                
Costs
   $
3,805,906
     $
629,501
  
Estimated earnings
    
1,044,612
      
155,790
  
     
4,850,518
      
785,291
  
Less: amounts billed
    
(4,123,851
 )    
(874,222
 )
    $
726,667
     $
(88,931
 )
                 
November 30, 2018
                
Costs
   $
190,861
     $
99,782
  
Estimated earnings
    
54,721
      
121,115
  
     
245,582
      
220,897
  
Less: amounts billed
    
(146,295
 )    
(405,911
 )
    $
99,287
     $
(185,014
 )
 
The amounts billed on these long-term contracts are due
30
days from invoice date. All amounts billed are expected to be collected within the next
12
months. Retainage was
$0
and
$8,405
as of
November 30, 2019
and
2018,
respectively.