| **Regulatory Capital Requirements (Details) (USD $)**                            | Dec. 31, 2012 | Dec. 31, 2011 |
|----------------------------------------------------------------------------------|---------------|---------------|
| **Tier 1 capital to risk-weighted assets [Abstract]**                            |          |          |
| Actual                                                                           | $ 117,603,000 | $ 115,865,000 |
| **Average assets [Abstract]**                                                    |          |          |
| Retained earnings from prior two years available for dividends                   | 6,781,000     |          |
| Non Consolidated [Member]                                                        |          |          |
| **Tier 2 capital to risk-weighted asets [Abstract]**                             |          |          |
| Actual                                                                           | 124,366,000   | 123,599,000   |
| For capital adequacy purpose                                                     | 63,531,000    | 64,320,000    |
| To be well-capitalized under prompt corrective action provisions                 | 79,414,000    | 80,400,000    |
| **Risk-weighted assets [Abstract]**                                              |          |          |
| Actual (in hundredths)                                                           | 15.66%        | 15.37%        |
| For capital adequacy purpose (in hundredths)                                     | 8.00%         | 8.00%         |
| To be well-capitalized under prompt corrective action provisions (in hundredths) | 10.00%        | 10.00%        |
| Actual (in hundredths)                                                           | 14.41%        | 14.11%        |
| For capital adequacy purpose (in hundredths)                                     | 4.00%         | 4.00%         |
| To be well-capitalized under prompt corrective action provisions (in hundredths) | 6.00%         | 6.00%         |
| **Tier 1 capital to risk-weighted assets [Abstract]**                            |          |          |
| Actual                                                                           | 114,419,000   | 113,521,000   |
| For capital adequacy purpose                                                     | 31,765,000    | 32,160,000    |
| To be well-capitalized under prompt corrective action provisions                 | 47,648,000    | 48,240,000    |
| **Tier 1 capital to average assets [Abstract]**                                  |          |          |
| Actual                                                                           | 114,419,000   | 113,521,000   |
| For capital adequacy purpose                                                     | 55,636,000    | 54,600,000    |
| To be well-capitalized under prompt corrective action provisions                 | 69,545,000    | 68,250,000    |
| **Average assets [Abstract]**                                                    |          |          |
| Actual (in hundredths)                                                           | 8.23%         | 8.33%         |
| For capital adequacy purpose (in hundredths)                                     | 4.00%         | 4.00%         |
| To be well-capitalized under prompt corrective action provisions (in hundredths) | 5.00%         | 5.00%         |
| Consolidated [Member]                                                            |          |          |
| **Tier 2 capital to risk-weighted asets [Abstract]**                             |          |          |
| Actual                                                                           | 127,557,000   | 125,943,000   |
| For capital adequacy purpose                                                     | 63,579,000    | 64,320,000    |
| **Risk-weighted assets [Abstract]**                                              |          |          |
| Actual (in hundredths)                                                           | 16.05%        | 15.66%        |
| For capital adequacy purpose (in hundredths)                                     | 8.00%         | 8.00%         |
| Actual (in hundredths)                                                           | 14.80%        | 14.40%        |
| For capital adequacy purpose (in hundredths)                                     | 4.00%         | 4.00%         |
| **Tier 1 capital to risk-weighted assets [Abstract]**                            |          |          |
| For capital adequacy purpose                                                     | 31,790,000    | 32,160,000    |
| **Tier 1 capital to average assets [Abstract]**                                  |          |          |
| Actual                                                                           | 117,603,000   | 115,865,000   |
| For capital adequacy purpose                                                     | $ 55,628,000  | $ 55,720,000  |
| **Average assets [Abstract]**                                                    |          |          |
| Actual (in hundredths)                                                           | 8.46%         | 8.32%         |
| For capital adequacy purpose (in hundredths)                                     | 4.00%         | 4.00%         |

| X                                                                                                                                                                                                                                                                                                                                                                                    |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of retained earnings as of the balance sheet date from the prior two years that can be distributed in the form of dividends.
+ References
No definition available.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of total capital as defined in the regulations.
+ References
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| - Definition
The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.
+ References
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| - Definition
The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total Capital divided by risk weighted assets as defined in the regulations.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of Tier 1 Leverage Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.
+ References
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| - Definition
The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Tier 1 Leverage Capital divided by average assets as defined in the regulations.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Tier 1 Risk Based Capital as defined in the regulations.
+ References
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| - Definition
The minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.
+ References
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| - Definition
The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 17 -Paragraph 15 -Subparagraph 3a -IssueDate 2006-05-01 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Tier 1 capital divided by risk weighted assets as defined by regulations.
+ References
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