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Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Apr. 30, 2020
Oct. 31, 2019
Finite-Lived Intangible Assets [Line Items]    
Accumulated Amortization $ (1,574) $ (1,084)
Net Carrying Amount 8,262  
Gross Carrying Amount 13,256 13,491
Net Carrying Amount 11,682 12,407
Trade names and trademarks    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 3,786 3,786
Accumulated Amortization (698) (542)
Net Carrying Amount $ 3,088 $ 3,244
Weighted Average Useful Life in Years 10 years 10 years
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 5,010 $ 5,010
Accumulated Amortization (781) (500)
Net Carrying Amount $ 4,229 $ 4,510
Weighted Average Useful Life in Years 9 years 9 years
Non-competition agreement    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 1,040 $ 1,040
Accumulated Amortization (95) (42)
Net Carrying Amount $ 945 $ 998
Weighted Average Useful Life in Years 10 years 10 years
Acquired water and mineral rights    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount of Indefinite Lived Assets $ 3,420 $ 3,655