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Contingencies (Details Textual) - USD ($)
12 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Loss Contingencies [Line Items]    
Expected future losses $ 1,135,000 $ 1,700,000
Estimated payout period 5 years  
Discount rate 4.00% 4.00%
Product and General Liability Insurance | Maximum [Member]    
Loss Contingencies [Line Items]    
Self insurance retention $ 250,000  
Workers compensation Liability Insurance | Maximum [Member]    
Loss Contingencies [Line Items]    
Self insurance retention 250,000  
Automobile Liability Loss | Maximum [Member]    
Loss Contingencies [Line Items]    
Self insurance retention 50,000  
Loss Liability | Maximum [Member]    
Loss Contingencies [Line Items]    
Self insurance retention $ 30,000,000