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Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Fair Value, Measurements, Recurring [Member] |  |
Fair Value Disclosure, Securities Available-for-Sale [Abstract] |  |
Fair Value Disclosure, Agency Obligations | $ 51,171 | $ 53,062
Fair Value Disclosure, Agency RMBS | 118,598 | 133,072
Fair Value Disclosure, State and Political Subdivisions | 70,032 | 71,563
Fair Value Disclosure, Securities Available-for-Sale, Total | 239,801 | 257,697
Other Assets, Fair Value Disclosure | 0 | 52
Assets, Fair Value Disclosure, Recurring | 239,801 | 257,749
Liabilities Fair Value Disclosure [Abstract] |  |
Other Liabilities, Fair Value Disclosure | 0 | 52
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Disclosure, Securities Available-for-Sale [Abstract] |  |
Fair Value Disclosure, Agency Obligations | 0 | 0
Fair Value Disclosure, Agency RMBS | 0 | 0
Fair Value Disclosure, State and Political Subdivisions | 0 | 0
Fair Value Disclosure, Securities Available-for-Sale, Total | 0 | 0
Other Assets, Fair Value Disclosure | 0 | 0
Assets, Fair Value Disclosure, Recurring | 0 | 0
Liabilities Fair Value Disclosure [Abstract] |  |
Other Liabilities, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Disclosure, Securities Available-for-Sale [Abstract] |  |
Fair Value Disclosure, Agency Obligations | 51,171 | 53,062
Fair Value Disclosure, Agency RMBS | 118,598 | 133,072
Fair Value Disclosure, State and Political Subdivisions | 70,032 | 71,563
Fair Value Disclosure, Securities Available-for-Sale, Total | 239,801 | 257,697
Other Assets, Fair Value Disclosure | 0 | 52
Assets, Fair Value Disclosure, Recurring | 239,801 | 257,749
Liabilities Fair Value Disclosure [Abstract] |  |
Other Liabilities, Fair Value Disclosure | 0 | 52
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Disclosure, Securities Available-for-Sale [Abstract] |  |
Fair Value Disclosure, Agency Obligations | 0 | 0
Fair Value Disclosure, Agency RMBS | 0 | 0
Fair Value Disclosure, State and Political Subdivisions | 0 | 0
Fair Value Disclosure, Securities Available-for-Sale, Total | 0 | 0
Other Assets, Fair Value Disclosure | 0 | 0
Assets, Fair Value Disclosure, Recurring | 0 | 0
Liabilities Fair Value Disclosure [Abstract] |  |
Other Liabilities, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Abstract] |  |
Loans Held-for-sale, Fair Value Disclosure | 383 | 1,922
Impaired Loans, Fair Value Disclosure | 157 | 2,700
Other Real Esate Owned, Fair Value Disclosure | 172 | 0
Servicing Asset at Fair Value, Amount | 1,441 | 1,644
Assets, Fair Value Disclosure, NonRecurring | 2,153 | 6,266
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Abstract] |  |
Loans Held-for-sale, Fair Value Disclosure | 0 | 0
Impaired Loans, Fair Value Disclosure | 0 | 0
Other Real Esate Owned, Fair Value Disclosure | 0 | 0
Servicing Asset at Fair Value, Amount | 0 | 0
Assets, Fair Value Disclosure, NonRecurring | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Abstract] |  |
Loans Held-for-sale, Fair Value Disclosure | 383 | 1,922
Impaired Loans, Fair Value Disclosure | 0 | 0
Other Real Esate Owned, Fair Value Disclosure | 0 | 0
Servicing Asset at Fair Value, Amount | 0 | 0
Assets, Fair Value Disclosure, NonRecurring | 383 | 1,922
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Abstract] |  |
Loans Held-for-sale, Fair Value Disclosure | 0 | 0
Impaired Loans, Fair Value Disclosure | 157 | 2,700
Other Real Esate Owned, Fair Value Disclosure | 172 | 0
Servicing Asset at Fair Value, Amount | 1,441 | 1,644
Assets, Fair Value Disclosure, NonRecurring | $ 1,770 | $ 4,344

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