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Financing Agreements (Details)
$ in Thousands
Oct. 31, 2020
USD ($)
Line of Credit Facility [Line Items]  
Long-term Line of Credit $ 15,000
Line of Credit  
Line of Credit Facility [Line Items]  
Line of Credit Facility, Maximum Borrowing Capacity 35,000
Standby Letters of Credit  
Line of Credit Facility [Line Items]  
Line of Credit Facility, Maximum Borrowing Capacity 20,000
Long-term Line of Credit $ 6,853