Disclosures about Fair Value of Assets and Liabilities (Schedule of Fair Value Measured on a Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Recurring Fair Value Measurements
Available-for-sale securities	$ 70,709	$ 95,347
U.S. government agencies [Member]
Recurring Fair Value Measurements
Available-for-sale securities	11	101
Mortgage-backed securities of government-sponsored entities [Member]
Recurring Fair Value Measurements
Available-for-sale securities	58,614	76,104
Private-label collateralized mortgage obligations [Member]
Recurring Fair Value Measurements
Available-for-sale securities	40	277
State and political subdivisions [Member]
Recurring Fair Value Measurements
Available-for-sale securities	12,044	18,865
Fair Value measured on a Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. government agencies [Member]
Recurring Fair Value Measurements
Available-for-sale securities
Fair Value measured on a Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mortgage-backed securities of government-sponsored entities [Member]
Recurring Fair Value Measurements
Available-for-sale securities
Fair Value measured on a Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Private-label collateralized mortgage obligations [Member]
Recurring Fair Value Measurements
Available-for-sale securities
Fair Value measured on a Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | State and political subdivisions [Member]
Recurring Fair Value Measurements
Available-for-sale securities
Fair Value measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. government agencies [Member]
Recurring Fair Value Measurements
Available-for-sale securities	11	101
Fair Value measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage-backed securities of government-sponsored entities [Member]
Recurring Fair Value Measurements
Available-for-sale securities	58,614	76,104
Fair Value measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Private-label collateralized mortgage obligations [Member]
Recurring Fair Value Measurements
Available-for-sale securities	40	277
Fair Value measured on a Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | State and political subdivisions [Member]
Recurring Fair Value Measurements
Available-for-sale securities	12,044	18,865
Fair Value measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. government agencies [Member]
Recurring Fair Value Measurements
Available-for-sale securities
Fair Value measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mortgage-backed securities of government-sponsored entities [Member]
Recurring Fair Value Measurements
Available-for-sale securities
Fair Value measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Private-label collateralized mortgage obligations [Member]
Recurring Fair Value Measurements
Available-for-sale securities
Fair Value measured on a Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | State and political subdivisions [Member]
Recurring Fair Value Measurements
Available-for-sale securities
Fair value [Member] | Fair Value measured on a Recurring Basis [Member] | U.S. government agencies [Member]
Recurring Fair Value Measurements
Available-for-sale securities	11	101
Fair value [Member] | Fair Value measured on a Recurring Basis [Member] | Mortgage-backed securities of government-sponsored entities [Member]
Recurring Fair Value Measurements
Available-for-sale securities	58,614	76,104
Fair value [Member] | Fair Value measured on a Recurring Basis [Member] | Private-label collateralized mortgage obligations [Member]
Recurring Fair Value Measurements
Available-for-sale securities	40	277
Fair value [Member] | Fair Value measured on a Recurring Basis [Member] | State and political subdivisions [Member]
Recurring Fair Value Measurements
Available-for-sale securities	$ 12,044	$ 18,865