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Employee Benefit and Retirement Plans (Schedule Of Pension Assets By Major Category Of Plan Assets And Type Of Fair Value Measurements) (Details)
$ in Thousands
Apr. 30, 2022
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
Plan assets at net asset value $ 979
QUOTED PRICES IN ACTIVE MARKETS (LEVEL 1) [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Plan assets at net asset value 979
SIGNIFICANT OBSERVABLE INPUTS (LEVEL 2) [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Plan assets at net asset value 0
SIGNIFICANT UNOBSERVABLE INPUTS (LEVEL 3) [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Plan assets at net asset value 0
Cash and Cash Equivalents [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Plan assets at net asset value 979
Cash and Cash Equivalents [Member] | QUOTED PRICES IN ACTIVE MARKETS (LEVEL 1) [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Plan assets at net asset value 979
Cash and Cash Equivalents [Member] | SIGNIFICANT OBSERVABLE INPUTS (LEVEL 2) [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Plan assets at net asset value 0
Cash and Cash Equivalents [Member] | SIGNIFICANT UNOBSERVABLE INPUTS (LEVEL 3) [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Plan assets at net asset value $ 0