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Leases - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Oct. 31, 2021
Lessee Lease Description [Line Items]      
Operating lease ROU asset $ 7,877   $ 8,109
Operating lease liability 8,834    
Accumulated deficit (1,305,875)   (1,265,251)
Finance lease, liability $ 91   $ 102
Finance Lease, Liability, Statement of Financial Position [Extensible List] Current portion of long-term debt, Long-term debt and other liabilities   Current portion of long-term debt, Long-term debt and other liabilities
Operating lease expense $ 395 $ 378  
Operating lease, weighted average remaining lease term 20 years    
Operating lease, weighted average discount rate 8.20% 8.20%  
Operating lease, payments $ 372 $ 284  
Minimum      
Lessee Lease Description [Line Items]      
Operating and finance lease, remaining lease term 1 year    
Maximum      
Lessee Lease Description [Line Items]      
Operating and finance lease, remaining lease term 26 years