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Fair Value of Financial Instruments Fair Value - Recurring and Nonrecurring (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016 | Jun. 30, 2016
--- | --- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | $ 327,392 | $ 346,996 | $ 362,929
Available-for-sale Securities, Amortized Cost Basis | 327,268 | 347,615 | 356,910
With a Related Allowance | 791 | 0 | 1,692
Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 327,392 | 346,996 | 362,929
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 54,676 | 54,706 | 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 272,716 | 292,290 | 362,929
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Impaired Loans |  | 0 | 1,692
Gain (Loss) on Collateral Dependent Impaired Loans | (146) | 0 | (250)
Other Real Estate and Repossessed Assets, Net | 1,613 | 1,686 | 933
Gain (Loss) Other Real Estate and Repossessed Assets, Net | (584) | (587) | (732)
Fair Value, Measurements, Nonrecurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Impaired Loans | 0 | 0 | 0
Other Real Estate and Repossessed Assets, Net | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Impaired Loans | 0 | 0 | 0
Other Real Estate and Repossessed Assets, Net | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Impaired Loans | 791 | 0 | 1,692
Other Real Estate and Repossessed Assets, Net | 1,613 | 1,686 | 933
U.S. Agency Obligations |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 147,085 | 147,377 | 157,990
Available-for-sale Securities, Amortized Cost Basis | 146,914 | 147,110 | 155,859
U.S. Agency Obligations | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 147,085 | 147,377 | 157,990
U.S. Agency Obligations | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 54,676 | 54,706 | 0
U.S. Agency Obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 92,409 | 92,671 | 157,990
U.S. Agency Obligations | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
State and Municipal Obligations |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 15,441 | 27,690 | 36,425
Available-for-sale Securities, Amortized Cost Basis | 15,410 | 27,684 | 36,256
State and Municipal Obligations | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 15,441 | 27,690 | 36,425
State and Municipal Obligations | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
State and Municipal Obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 15,441 | 27,690 | 36,425
State and Municipal Obligations | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 161,077 | 167,239 | 161,728
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 161,077 | 167,239 | 161,728
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
Corporate and Other Debt Securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 2,299 | 3,308 | 5,555
Available-for-sale Securities, Amortized Cost Basis | 2,500 | 3,512 | 5,749
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 2,299 | 3,308 | 5,555
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 2,299 | 3,308 | 5,555
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
Mutual Funds and Equity Securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 1,490 | 1,382 | 1,231
Available-for-sale Securities, Amortized Cost Basis | 1,120 | 1,120 | 1,120
Mutual Funds and Equity Securities | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale |  | 1,382 | 1,231
Available-for-sale Securities, Amortized Cost Basis | 1,490 |  |
Mutual Funds and Equity Securities | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 0 | 0 | 0
Mutual Funds and Equity Securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | 1,490 | 1,382 | 1,231
Mutual Funds and Equity Securities | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale | $ 0 | $ 0 | $ 0

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