Fair Value Measurements, Quantitative Information About Unobservable Inputs Used In Recurring And Nonrecurring Level 3 Inputs (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net income	$ 4,694,000	$ 5,618,000	$ 8,851,000	$ 10,141,000
Less allocation of earnings and dividends to participating securities	33,000	29,000	63,000	53,000
Net Income (Loss) Available to Common Stockholders, Basic	$ 4,661,000	$ 5,589,000	$ 8,788,000	$ 10,088,000
Weighted average common shares outstanding, gross (in shares)	11,135,325	11,396,119	11,202,300	11,635,949
Less average participating securities (in shares)	79,017	58,314	79,929	59,076
Basic (in shares)	11,056,308	11,337,805	11,122,371	11,576,873
Nonrecurring [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 22,000		$ 22,000		$ 923,000
Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	22,000		22,000		923,000
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	$ 22,000		$ 22,000
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					923,000
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					0.0813
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					0.0463
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					$ 0.0604