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Restructuring Charges (Narrative) (Details) $ in Millions	Jul. 17, 2020 USD ($) Branch
Restructuring Cost And Reserve [Line Items]
Number of bank branch closure \| Branch	6
Percentage of branch network	10.00%
Percentage of branch network impact	6.00%
Pre tax expense related branch closures	$ 1.6
Total costs result in future cash expenditures	0.7
Anticipates annual expense savings branch closures	2.6
Employee Severance [Member]
Restructuring Cost And Reserve [Line Items]
Pre tax expense related branch closures	0.2
Lease Termination Costs [Member]
Restructuring Cost And Reserve [Line Items]
Pre tax expense related branch closures	0.5
Valuation Adjustments On Branch Facilities [Member]
Restructuring Cost And Reserve [Line Items]
Pre tax expense related branch closures	$ 0.9