Fair Value Measurements, Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	$ 148,247
Securities available-for-sale	148,247	$ 157,121
Loans, net of allowances for loan losses	763,898	729,092
Loans held for sale	479	779
U.S. Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	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	10,714	9,435
Obligations of States and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	48,837	64,765
Mortgage-Backed Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	71,191	74,296
Money Market Investments [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	1,897	1,194
Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Securities available-for-sale	148,247	157,121
Recurring [Member] | U.S. Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	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	10,714	9,435
Recurring [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	48,837	64,765
Recurring [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	71,191	74,296
Recurring [Member] | Money Market Investments [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	1,897	1,194
Recurring [Member] | Corporate Bonds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	3,280	7,234
Recurring [Member] | Other Marketable Equity Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Equity securities, available-for-sale		197
Nonrecurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	491	567
Loans held for sale	479	779
Other real estate owned	83
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	188	264
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 Line of Credit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	229	229
Nonrecurring [Member] | Other Real Estate [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Other real estate owned	83
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Securities available-for-sale	0	0
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]
Securities available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | U.S. Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	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 States 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 [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] | Other Marketable Equity Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Equity securities, available-for-sale		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
Loans held for sale	0	0
Other real estate owned	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] | 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 Line of Credit [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] | Commercial [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] | Other Real Estate [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]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Securities available-for-sale	148,247	157,121
Loans, net of allowances for loan losses	0	0
Loans held for sale	479	779
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Securities available-for-sale	148,247	157,121
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | U.S. Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	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	10,714	9,435
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	48,837	64,765
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	71,191	74,296
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	1,897	1,194
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Corporate Bonds [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	3,280	7,234
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Other Marketable Equity Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Equity securities, available-for-sale		197
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
Loans held for sale	479	779
Other real estate owned	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] | 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 Line of Credit [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] | Commercial [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] | Other Real Estate [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Other real estate owned	0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Securities available-for-sale	0	0
Loans, net of allowances for loan losses	749,848	722,464
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]
Securities available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | U.S. Treasury Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Debt securities, available-for-sale	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 States 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 [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] | Other Marketable Equity Securities [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Equity securities, available-for-sale		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	491
Loans held for sale	0	0
Other real estate owned	83
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	188	264
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 Line of Credit [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses	229	229
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Commercial [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Loans, net of allowances for loan losses		$ 567
Significant Unobservable Inputs (Level 3) [Member] | Nonrecurring [Member] | Other Real Estate [Member] | Construction [Member]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]
Other real estate owned	$ 83