New Accounting Standards (Narrative) (Details) - COVID-19, CARES Act [Member] $ in Millions		3 Months Ended
	Oct. 31, 2020 USD ($) loan	Jun. 30, 2020 USD ($) loan
Number of loans approved for payment deferral | loan		219
Loans outstanding balances with payment deferrals | $		$ 103.1
Loans balances with payment deferrals, percent of total loans on deferral		21.10%
Commercial Real Estate And Commercial Business Loans [Member]
Loans balances with payment deferrals, percent of total loans on deferral		88.20%
Residential Mortgage, Home Equity and Consumer Loans [Member]
Loans balances with payment deferrals, percent of total loans on deferral		11.80%
Loans Approved for Additional 90 Day Payment Deferral [Member] | Subsequent Event [Member]
Number of loans approved for payment deferral | loan	25
Loans outstanding balances with payment deferrals | $	$ 20.8
Loans balances with payment deferrals, percent of total loans on deferral	4.10%