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Note 11 - Intangible Assets
 6 Months Ended
Apr. 30, 2020
Notes to Financial Statements  
Intangible Assets Disclosure [Text Block]
Note
1
1
–
Intangible assets
 
Intangible assets consist of the following (in thousands): 
 
   
April 30, 2020
    
October 31, 2019
  
Amortizable intangible assets:
                
Non-compete agreement (estimated life 5 years)
   $
423
     $
200
  
Accumulated amortization
    
(222
 )    
(200
 )
     
201
      
-
  
                 
Customer relationships (estimated lives 7 - 15 years)
   $
5,058
     $
2,879
  
Accumulated amortization
    
(2,126
 )    
(1,884
 )
     
2,932
      
995
  
                 
Backlog (estimated life 1 - 2 years)
    
287
      
134
  
Accumulated amortization
    
(200
 )    
(134
 )
     
87
      
-
  
                 
Patents (estimated life 10 - 14 years)
    
368
      
142
  
Accumulated amortization
    
(61
 )    
(45
 )
     
307
      
97
  
                 
Totals
   $
3,527
     $
1,092
  
                 
Non-amortizable intangible assets:
                
Trademarks
   $
1,174
     $
657
  
 
Amortization expense for the
six
months ended
April 30, 2020
and the year ended
October 31, 2019
was
$346,000
and
$275,000,
respectively. As of
April 30, 2020,
the weighted-average amortization period for the amortizable intangible assets is
8.39
years.