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Summary of Business and Significant Accounting Policies (Self-Insurance) (Details) - USD ($)
Jan. 31, 2023
Jan. 31, 2022
Loss Contingencies [Line Items]    
Discount rate 4.00% 4.00%
Expected future losses $ 1,300,000 $ 1,200,000
Self insurance reserve, current 200,000  
Product liability    
Loss Contingencies [Line Items]    
Self insurance reserve 250,000 250,000
Workers Compensation    
Loss Contingencies [Line Items]    
Self insurance reserve 250,000 250,000
General liability    
Loss Contingencies [Line Items]    
Self insurance reserve 50,000 50,000
Auto Liability    
Loss Contingencies [Line Items]    
Self insurance reserve $ 50,000 $ 50,000