| **Premises and Equipment (Details) - USD ($) $ in Thousands** | Dec. 31, 2016 | Dec. 31, 2015 |
|---------------------------------------------------------------|---------------|---------------|
| **Property, Plant and Equipment [Line Items]**                |          |          |
| Premises and equipment, gross                                 | $ 39,416      | $ 37,340      |
| Less accumulated depreciation                                 | 17,214        | 15,524        |
| Premises and equipment, net                                   | 22,202        | 21,816        |
| 2017                                                          | 147           |          |
| 2018                                                          | 55            |          |
| 2019                                                          | 11            |          |
| 2020                                                          | 4             |          |
| Land                                                          |          |          |
| **Property, Plant and Equipment [Line Items]**                |          |          |
| Premises and equipment, gross                                 | 4,742         | 4,539         |
| Land improvements                                             |          |          |
| **Property, Plant and Equipment [Line Items]**                |          |          |
| Premises and equipment, gross                                 | 1,041         | 874           |
| Buildings                                                     |          |          |
| **Property, Plant and Equipment [Line Items]**                |          |          |
| Premises and equipment, gross                                 | 21,601        | 20,569        |
| Equipment                                                     |          |          |
| **Property, Plant and Equipment [Line Items]**                |          |          |
| Premises and equipment, gross                                 | $ 12,032      | $ 11,358      |

| X                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                                                                                                                                                  |
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                    |
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
+ References
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