Fair Value Measurements, Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	$ 145,453	$ 148,247
Loans, net of allowances for loan losses	750,421	763,898
Loans held for sale	754	479
US Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	12,480	12,328
Obligations of U.S. Government Agencies [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	11,572	10,714
Obligations of State and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	42,132	48,837
Mortgage-Backed Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	72,173	71,191
Money Market Investments [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	3,484	1,897
Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	145,453	148,247
Recurring [Member] | US Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	12,480	12,328
Recurring [Member] | Obligations of U.S. Government Agencies [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	11,572	10,714
Recurring [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	42,132	48,837
Recurring [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	72,173	71,191
Recurring [Member] | Money Market Investments [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	3,484	1,897
Recurring [Member] | Corporate Bonds and Other Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	3,612	3,280
Nonrecurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	1,894	491
Loans held for sale	754	479
Other real estate owned		83
Nonrecurring [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Other real estate owned		83
Nonrecurring [Member] | Mortgage Loans on Real Estate [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	1,891	491
Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	45	188
Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	1,772
Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	74	74
Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Equity Lines of Credit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses		229
Nonrecurring [Member] | Commercial Loans [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	3
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Loans held for sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | US Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | Obligations of U.S. Government Agencies [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | Money Market Investments [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | Corporate Bonds and Other Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Nonrecurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Loans held for sale	0	0
Other real estate owned		0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Nonrecurring [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Other real estate owned		0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Equity Lines of Credit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses		0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Nonrecurring [Member] | Commercial Loans [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Loans held for sale	754	479
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	145,453	148,247
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | US Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	12,480	12,328
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Obligations of U.S. Government Agencies [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	11,572	10,714
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	42,132	48,837
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	72,173	71,191
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Money Market Investments [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	3,484	1,897
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Corporate Bonds and Other Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	3,612	3,280
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Loans held for sale	754	479
Other real estate owned		0
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Other real estate owned		0
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0	0
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Equity Lines of Credit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses		0
Significant Other Observable Inputs (Level 2) [Member] | Nonrecurring [Member] | Commercial Loans [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	741,154	749,848
Loans held for sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | US Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | Obligations of U.S. Government Agencies [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | Obligations of State and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | Money Market Investments [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | Corporate Bonds and Other Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	1,894	491
Loans held for sale	0	0
Other real estate owned		83
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Other real estate owned		83
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	1,891	491
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	45	188
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	1,772
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	74	74
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Mortgage Loans on Real Estate [Member] | Equity Lines of Credit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses		$ 229
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Commercial Loans [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	$ 3