Fair Value Measurements, Quantitative Information About Unobservable Inputs Used In Recurring And Nonrecurring Level 3 Inputs (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net income	$ 5,579,000	$ 4,817,000	$ 15,720,000	$ 15,347,000
Less allocation of earnings and dividends to participating securities	28,000	18,000	81,000	56,000
Net Income (Loss) Available to Common Stockholders, Basic	$ 5,551,000	$ 4,799,000	$ 15,639,000	$ 15,291,000
Weighted average common shares outstanding, gross (in shares)	11,342,539	12,501,234	11,537,078	12,709,326
Less average participating securities (in shares)	58,314	45,958	58,822	45,958
Basic (in shares)	11,284,225	12,455,276	11,478,256	12,663,368
Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 958,000		$ 958,000		$ 1,011,000
Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	958,000		958,000		1,011,000
Nonrecurring [Member] | Impaired Loans, Fair Value Calculated Using Estimated Sales Price [Domain] | Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	0		0		0
Nonrecurring [Member] | Impaired Loans, Fair Value Calculated Using Discounted Cash Flows | Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	958,000		958,000		1,011,000
Measurement Input, Discount Rate | Nonrecurring [Member] | Impaired Loans, Fair Value Calculated Using Discounted Cash Flows | High [Member] | Level 3 [Member] | Valuation, Income Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	0.08125		0.08125		0.0813
Measurement Input, Discount Rate | Nonrecurring [Member] | Impaired Loans, Fair Value Calculated Using Discounted Cash Flows | Low [Member] | Level 3 [Member] | Valuation, Income Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	0.04625		0.04625		0.0463
Measurement Input, Discount Rate | Nonrecurring [Member] | Impaired Loans, Fair Value Calculated Using Discounted Cash Flows | Weighted Average | Level 3 [Member] | Valuation, Income Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 0.0606		$ 0.0606		$ 0.0607