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Goodwill and Intangible Assets Changes in Carrying Amount of Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Oct. 31, 2019
Oct. 31, 2018
Oct. 31, 2017
Jul. 31, 2019
Oct. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]          
Amortization of intangible assets $ 2,075 $ 2,372 $ 2,259    
Finite-Lived Intangible Assets, Gross 27,560 27,594      
Finite-Lived Intangible Assets, Accumulated Amortization (14,535) (12,655)      
Finite-Lived Intangible Assets, Net $ 13,025 14,939   $ 13,025 $ 15,025
Customer Relationships [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life 6 years 8 months 12 days        
Finite-Lived Intangible Assets, Gross $ 17,561 17,564      
Finite-Lived Intangible Assets, Accumulated Amortization (8,584) (7,253)      
Finite-Lived Intangible Assets, Net $ 8,977 10,311   8,977 11,648
Developed Technology Rights [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life 9 years 1 month 6 days        
Finite-Lived Intangible Assets, Gross $ 7,134 7,165      
Finite-Lived Intangible Assets, Accumulated Amortization (4,155) (3,761)      
Finite-Lived Intangible Assets, Net $ 2,979 3,404   2,979 1,997
Noncompete Agreements [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life 0 days        
Finite-Lived Intangible Assets, Gross $ 824 824      
Finite-Lived Intangible Assets, Accumulated Amortization (824) (809)      
Finite-Lived Intangible Assets, Net $ 0 15   0 31
Trade Names [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life 8 years 2 months 12 days        
Finite-Lived Intangible Assets, Gross $ 1,875 1,875      
Finite-Lived Intangible Assets, Accumulated Amortization (867) (744)      
Finite-Lived Intangible Assets, Net $ 1,008 1,131   1,008 1,254
Trademarks [Member]          
Acquired Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Asset, Useful Life 3 years 9 months 18 days        
Finite-Lived Intangible Assets, Gross $ 166 166      
Finite-Lived Intangible Assets, Accumulated Amortization (105) (88)      
Finite-Lived Intangible Assets, Net $ 61 $ 78   $ 61 $ 95