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Intangible assets (Tables)
 9 Months Ended
Jul. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible assets

Intangible assets consist of the following (in thousands):

 

 

 

 

 

 

 

 

 

    

July 31, 2019

    

October 31, 2018

Amortizable intangible assets:

 

 

  

 

 

  

Customer relationships (estimated lives 7 - 15 years)

 

$

2,879

 

$

2,879

Accumulated amortization

 

 

(1,818)

 

 

(1,619)

 

 

 

1,061

 

 

1,260

 

 

 

  

 

 

  

Patents (estimated life 14 years)

 

 

142

 

 

142

Accumulated amortization

 

 

(42)

 

 

(35)

 

 

 

100

 

 

107

 

 

 

  

 

 

  

Totals

 

$

1,161

 

$

1,367

 

 

 

  

 

 

  

Non-amortizable intangible assets:

 

 

  

 

 

  

Trademarks

 

$

657

 

$

657