Stock-Based Compensation (Stock Options) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jan. 31, 2023	Oct. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Weighted Average Remaining Contractual Term (Years)
Outstanding, Ending Balance			4 years 1 month 9 days
Aggregated Intrinsic Value
Outstanding, Ending Balance	$ 0		$ 0
Stock options
Awards (In Shares)
Outstanding, Beginning Balance (in shares)	474,020	483,480	483,480
Expired/canceled (in shares)	(182,400)	(9,460)
Outstanding, Ending Balance (in shares)	291,620	474,020	291,620
Exercisable, Ending Balance (in shares)	246,740		246,740
Vested and Expected to Vest, Ending Balance (in shares)	289,009		289,009
Weighted Average Exercise Price (Per Share)
Outstanding, Beginning Balance (in dollars per share)	$ 24.38	$ 24.43	$ 24.43
Expired/canceled (in dollars per share)	24.75	26.55
Outstanding, Ending Balance (in dollars per share)	24.15	$ 24.38	24.15
Exercisable, Ending Balance (in dollars per share)	25.29		25.29
Vested and Expected to Vest, Ending Balance (in dollars per share)	$ 24.21		$ 24.21
Weighted Average Remaining Contractual Term (Years)
Exercisable, Ending Balance			3 years 6 months 10 days
Vested And Expected To Vest, Ending Balance			4 years 29 days
Aggregated Intrinsic Value
Exercisable, Ending Balance	$ 0		$ 0
Vested and Expected to Vest, Ending Balance	$ 0		$ 0
Additional Disclosures
Exercise price, lower range limit (in dollars per share)			$ 17.88
Exercise price, upper range limit (in dollars per share)			$ 33.94
Total intrinsic value relating to stock-based awards exercised during the period			$ 0	$ 7,000
Stock options | Maximum
Additional Disclosures
Contractual term (in years)			10 years
Stock options | Tranche Two
Additional Disclosures
Vesting period			5 years