Fair Value Of Financial Instruments (Narrative) (Details) - Significant Unobservable Inputs (Level 3) [Member] $ in Thousands	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans individually evaluated for impairment	$ 5,700	$ 6,800
OREO	$ 183	678
Estimated Selling Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, measurement input	0.10
OREO, measurement input	0.10
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 0	0
Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans individually evaluated for impairment	5,700	6,800
OREO	$ 183	$ 678
Fair Value, Nonrecurring [Member] | Lack of Marketability [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, measurement input	0.04
Fair Value, Nonrecurring [Member] | Lack of Marketability [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, measurement input	0.50
Fair Value, Nonrecurring [Member] | Lack of Marketability [Member] | Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, measurement input	0.18