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Fair Value Financial Instruments (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
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Carrying (Reported) Amount, Fair Value Disclosure [Member] |  |
Fair Value, Financial Assets: [Abstract] |  |
Fair Value, Financial Instruments, Loans, Net | $ 444,708 | $ 426,303
Fair Value, Financial Instruments, Loans Held For Sale | 924 | 1,497
Fair Value, Financial Liabilities: [Abstract] |  |
Fair Value, Financial Instruments, Time Deposits | 194,131 | 208,137
Fair Value, Financial Instruments, Long-term Debt | 3,217 | 3,217
Estimate of Fair Value, Fair Value Disclosure [Member] |  |
Fair Value, Financial Assets: [Abstract] |  |
Fair Value, Financial Instruments, Loans, Net | 445,776 | 428,446
Fair Value, Financial Instruments, Loans Held For Sale | 931 | 1,507
Fair Value, Financial Liabilities: [Abstract] |  |
Fair Value, Financial Instruments, Time Deposits | 192,463 | 207,791
Fair Value, Financial Instruments, Long-term Debt | 3,217 | 3,217
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Financial Assets: [Abstract] |  |
Fair Value, Financial Instruments, Loans, Net | 0 | 0
Fair Value, Financial Instruments, Loans Held For Sale | 0 | 0
Fair Value, Financial Liabilities: [Abstract] |  |
Fair Value, Financial Instruments, Time Deposits | 0 | 0
Fair Value, Financial Instruments, Long-term Debt | 0 | 0
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Financial Assets: [Abstract] |  |
Fair Value, Financial Instruments, Loans, Net | 0 | 0
Fair Value, Financial Instruments, Loans Held For Sale | 931 | 1,507
Fair Value, Financial Liabilities: [Abstract] |  |
Fair Value, Financial Instruments, Time Deposits | 192,463 | 207,791
Fair Value, Financial Instruments, Long-term Debt | 3,217 | 3,217
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Financial Assets: [Abstract] |  |
Fair Value, Financial Instruments, Loans, Net | 445,776 | 428,446
Fair Value, Financial Instruments, Loans Held For Sale | 0 | 0
Fair Value, Financial Liabilities: [Abstract] |  |
Fair Value, Financial Instruments, Time Deposits | 0 | 0
Fair Value, Financial Instruments, Long-term Debt | $ 0 | $ 0

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