Fair Value Measurements (Fair Value Measurements by Level of Valuation Inputs) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	$ 285,878,000	$ 210,686,000
Impaired loans	5,637,000	3,586,000
Equity securities	990,000	1,144,000
Interest rate swaps	206,000
Fair value assets, level 1 to level 2 transfer amount	0		$ 0
Obligations of U.S. Government Agencies and Corporations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	6,024,000	20,920,000
Obligations of State and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	7,620,000	4,575,000
Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	990,000	1,144,000
Corporate Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	7,184,000
(Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps	0
(Level 2) Significant Other Observable Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps	206,000
(Level 3) Significant Other Unobservable Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps	0
Fair Value, Measurements, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	285,878,000	210,686,000
Fair Value, Measurements, Recurring [Member] | Obligations of U.S. Government Agencies and Corporations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	6,024,000	20,920,000
Fair Value, Measurements, Recurring [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	7,620,000	4,575,000
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	990,000	1,144,000
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	7,184,000
Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	265,050,000	185,191,000
Fair Value, Measurements, Recurring [Member] | (Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | (Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities | Obligations of U.S. Government Agencies and Corporations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | (Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities | Obligations of State and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | (Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	990,000	1,144,000
Fair Value, Measurements, Recurring [Member] | (Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities | Corporate Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0
Fair Value, Measurements, Recurring [Member] | (Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities | Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | (Level 2) Significant Other Observable Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	285,878,000	210,686,000
Fair Value, Measurements, Recurring [Member] | (Level 2) Significant Other Observable Inputs [Member] | Obligations of U.S. Government Agencies and Corporations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	6,024,000	20,920,000
Fair Value, Measurements, Recurring [Member] | (Level 2) Significant Other Observable Inputs [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	7,620,000	4,575,000
Fair Value, Measurements, Recurring [Member] | (Level 2) Significant Other Observable Inputs [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	0	0
Fair Value, Measurements, Recurring [Member] | (Level 2) Significant Other Observable Inputs [Member] | Corporate Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	7,184,000
Fair Value, Measurements, Recurring [Member] | (Level 2) Significant Other Observable Inputs [Member] | Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	265,050,000	185,191,000
Fair Value, Measurements, Recurring [Member] | (Level 3) Significant Other Unobservable Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | (Level 3) Significant Other Unobservable Inputs [Member] | Obligations of U.S. Government Agencies and Corporations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | (Level 3) Significant Other Unobservable Inputs [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | (Level 3) Significant Other Unobservable Inputs [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	0	0
Fair Value, Measurements, Recurring [Member] | (Level 3) Significant Other Unobservable Inputs [Member] | Corporate Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0
Fair Value, Measurements, Recurring [Member] | (Level 3) Significant Other Unobservable Inputs [Member] | Mortgage-Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | Mortgage Servicing Rights [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	172,000	180,000
Fair Value, Measurements, Recurring [Member] | Mortgage Servicing Rights [Member] | (Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	0	0
Fair Value, Measurements, Recurring [Member] | Mortgage Servicing Rights [Member] | (Level 2) Significant Other Observable Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	0	0
Fair Value, Measurements, Recurring [Member] | Mortgage Servicing Rights [Member] | (Level 3) Significant Other Unobservable Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	172,000	180,000
Fair Value Measurements, Non-Recurring Basis [Member] | Impaired Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans	103,000	144,000
Fair Value Measurements, Non-Recurring Basis [Member] | Impaired Loans [Member] | (Level 1) Quoted Prices in Active Markets for Identical Assets or Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans	0	0
Fair Value Measurements, Non-Recurring Basis [Member] | Impaired Loans [Member] | (Level 2) Significant Other Observable Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans	0	0
Fair Value Measurements, Non-Recurring Basis [Member] | Impaired Loans [Member] | (Level 3) Significant Other Unobservable Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans	$ 103,000	$ 144,000