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Insider Trading Arrangements
 3 Months Ended 6 Months Ended
Jul. 31, 2023
shares
Jul. 31, 2023
shares
Trading Arrangements, by Individual    
Rule 10b5-1 Arrangement Adopted false  
Non-Rule 10b5-1 Arrangement Adopted false  
Rule 10b5-1 Arrangement Terminated false  
Bill Carey [Member]    
Trading Arrangements, by Individual    
Material Terms of Trading Arrangement   On June 9, 2023, during our last fiscal quarter, Bill Carey, our Chief Accounting Officer and officer as defined in Rule 16a-1(f), adopted a “Rule 10b5-1 trading arrangement” as defined in Regulation S-K Item 408. The trading arrangement provides for the sale from time to time of an aggregate of up to 29,085 shares of our common stock, the actual amount of which may be less based on tax withholdings and vesting conditions of PSUs. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until September 30, 2024, or earlier if all transactions under the trading arrangement are completed.
Name Bill Carey  
Title Chief Accounting Officer and officer  
Rule 10b5-1 Arrangement Adopted true  
Adoption Date June 9, 2023  
Arrangement Duration 479 days  
Aggregate Available 29,085 29,085