Retirement Plans (Fair Value of Employee Plan Assets) (Details)	3 Months Ended
	Oct. 31, 2023 USD ($) participant	Jan. 31, 2024 USD ($)	Jan. 31, 2023 USD ($)	Jan. 31, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Investments assets sold	$ 5,300,000
Proceeds from investment assets sold used to purchase annuities, number of participants | participant	49
Proceeds from investment assets sold used to purchase annuities, number of vested terminated participants | participant	89
Combined Employee Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 19,111,000	$ 23,628,000	$ 26,429,000
Combined Employee Retirement Plans [Member] | Managed Investment Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		2,200,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		16,970,000	21,473,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		11,560,000	9,389,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Principal Money Market [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		204,000	233,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Federated Herme Gove Oblig
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		327,000	722,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | PNC Government Money Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Vanguard INTM Term Investment Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		675,000	930,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Vanguard LT Investment [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		1,744,000	2,382,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Ishares Russell 2000 [Domain]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		16,000	718,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Ishares Russell MID-CAP Fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		17,000	738,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Ishares Emerging Markets Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		15,000	748,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Ishares MCSI RAFE Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		39,000	1,857,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Ishares S&P Index [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		15,000	483,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Vanguard LT Treasury [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		1,695,000	2,352,000
Combined Employee Retirement Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Vanguard INTM Term Treasury [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 663,000	$ 921,000