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Debt (Details)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Apr. 16, 2020
USD ($)
Mar. 31, 2020
USD ($)
Oct. 31, 2018
USD ($)
Oct. 31, 2020
USD ($)
Nov. 02, 2019
USD ($)
day
Oct. 31, 2020
USD ($)
day
Nov. 02, 2019
USD ($)
day
Feb. 01, 2020
USD ($)
day
Line of Credit Facility [Line Items]                
Proceeds under credit facilities           $ 115,918,000 $ 0  
Average outstanding amount       $ 0 $ 13,800,000 $ 43,300,000 $ 22,100,000 $ 21,500,000
Number of days where borrowings incurred against facilities | day         91 97 273 331
Maximum amount outstanding during period       0 $ 17,000,000.0 $ 50,000,000.0 $ 35,000,000.0 $ 38,000,000.0
Interest rate during period         3.58% 3.45% 3.83% 3.73%
Bank of America LOC                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity     $ 50,000,000.0          
Regions LOC                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity     $ 50,000,000.0          
Regions LOC | London Interbank Offered Rate (LIBOR)                
Line of Credit Facility [Line Items]                
Basis spread on variable rate     1.50%          
Bank of America and Regions LOCs                
Line of Credit Facility [Line Items]                
Proceeds under credit facilities   $ 50,000,000.0            
Amended Credit Facility                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity $ 75,000,000.0     $ 75,000,000.0   $ 75,000,000.0    
Proceeds under credit facilities 50,000,000.0              
Debt issuance costs 50,000              
Minimum inventory requirement $ 150,000,000.0              
Amended Credit Facility | London Interbank Offered Rate (LIBOR) | April 16, 2020 through October 16, 2020                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 2.50%              
Amended Credit Facility | London Interbank Offered Rate (LIBOR) | October 17, 2020 through Maturity                
Line of Credit Facility [Line Items]                
Basis spread on variable rate 3.00%