Fair Value of Financial Instruments (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Gains or losses included in earnings attributable to the change in realized/unrealized gains or losses related to the assets	$ 0	$ 0	$ 0	$ 0
Fair value, assets, level 1 to level 2 transfers, amount	0	0	0	0
Fair value, assets, level 2 to level 1 transfer, amount	0	0	0	0
Provision for loan losses	624,000	555,000	205,000	665,000
Nonaccrual loans	2,149,000		2,149,000		$ 2,462,000
Allowance for loan losses	(15,737,000)	$ (17,068,000)	(15,737,000)	$ (17,068,000)	(15,955,000)	$ (15,292,000)	$ (16,554,000)	$ (16,486,000)
Loans	1,233,613,000		1,233,613,000		1,153,687,000
Impaired Loans with Specific Allowance: Recorded Investment	303,000		303,000		480,000
Impaired Loans with Specific Allowance: Related Allowance	62,000		62,000		64,000
Impaired Loans with No Specific Allowance: Recorded Investment	4,980,000		4,980,000		5,248,000
Partial Charge Off [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Nonaccrual loans	1,300,000		1,300,000		500,000
Troubled Debt Restructuring [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Provision for loan losses			1,300,000		1,300,000
Allowance for loan losses	(300,000)		(300,000)		(400,000)
Impaired Loans with Specific Allowance: Recorded Investment	800,000		800,000		1,000,000.0
Impaired Loans with Specific Allowance: Related Allowance	$ 61,811		$ 61,811		$ 64,700