Loans (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Accounts Notes And Loans Receivable [Line Items]
Loans pledged as collateral	$ 159,900,000		$ 159,900,000		$ 185,100,000
Interest income recognized attributable to nonaccrual loans			0	$ 0
Interest income	0	$ 1,000
Interest income recognized on impaired loans	90,000	105,000	181,000	214,000
Allocated of specfic allowance for TDR loans	319,000		319,000		360,000
Commitment to lend additional funds	0		0		0
Charge-offs	1,000	230,000	22,000	239,000
Total TDRs	8,210,000		8,210,000		8,876,000
TDR Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Charge-offs	0	$ 0	0	0
Defaults on loans modified as TDR			0	0
Total TDRs	0		0		0
Paycheck Protection Program [Member]
Accounts Notes And Loans Receivable [Line Items]
Loan amount	13,500,000		13,500,000		42,400,000
Deferred loan fees	149,000,000		149,000,000		1,500,000
Interest income recognized attributable to nonaccrual loans			1,500,000	$ 2,400,000
Commercial and Industrial [Member]
Accounts Notes And Loans Receivable [Line Items]
Allocated of specfic allowance for TDR loans	50,000		50,000		71,000
Total TDRs	$ 99,000		$ 99,000		$ 141,000