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Fair Value Accounting (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Securities available for sale |  |
US government agencies | $ 8,710 | $ 6,159
SBA securities | 4,339 | 1,437
State and political subdivisions | 20,357 | 20,474
Mortgage-backed securities | 45,034 | 36,410
Mortgage loans held for sale | 9,124 | 7,801
Interest rate lock commitments | 343 | 256
MBS forward sales commitments | 46 |
Total assets measured at fair value on a recurring basis | 87,953 | 72,537
Liabilities |  |
MBS forward sales commitments |  | 3
Total liabilities measured at fair value on a recurring basis |  | 3
Level 1 [Member] |  |
Securities available for sale |  |
US government agencies |  |
SBA securities |  |
State and political subdivisions |  |
Mortgage-backed securities |  |
Mortgage loans held for sale |  |
Interest rate lock commitments |  |
MBS forward sales commitments |  |
Total assets measured at fair value on a recurring basis |  |
Liabilities |  |
MBS forward sales commitments |  |
Total liabilities measured at fair value on a recurring basis |  |
Level 2 [Member] |  |
Securities available for sale |  |
US government agencies | 8,710 | 6,159
SBA securities | 4,339 | 1,437
State and political subdivisions | 20,357 | 20,474
Mortgage-backed securities | 45,034 | 36,410
Mortgage loans held for sale | 9,124 | 7,801
Interest rate lock commitments | 343 | 256
MBS forward sales commitments | 46 |
Total assets measured at fair value on a recurring basis | 87,953 | 72,537
Liabilities |  |
MBS forward sales commitments |  | 3
Total liabilities measured at fair value on a recurring basis |  | 3
Level 3 [Member] |  |
Securities available for sale |  |
US government agencies |  |
SBA securities |  |
State and political subdivisions |  |
Mortgage-backed securities |  |
Mortgage loans held for sale |  |
Interest rate lock commitments |  |
MBS forward sales commitments |  |
Total assets measured at fair value on a recurring basis |  |
Liabilities |  |
MBS forward sales commitments |  |
Total liabilities measured at fair value on a recurring basis |  |

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