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Nature of Banking Activities and Significant Accounting Policies (Narrative) (Details) (USD $) | 12 Months Ended |  |  |  | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2012 | Sep. 19, 2011 | Dec. 31, 2003 | Dec. 31, 2012 Maximum [Member] Building [Member] | Dec. 31, 2012 Maximum [Member] Furniture and Equipment [Member] | Dec. 31, 2012 Minimum [Member] Building [Member] | Dec. 31, 2012 Minimum [Member] Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |
Ownership percentage in subsidiaries |  | 100.00% |  |  |  |  |  |
Period interest on mortgage and commercial loans is discountinued |  | 90 days |  |  |  |  |  |
Credit card loans and other personal loans are charged off |  | 180 days |  |  |  |  |  |
Limit of the estimated appraised value of the furnished home |  | 80.00% |  |  |  |  |  |
Estimated useful lives |  |  |  |  | 39 years | 10 years | 10 years | 3 years
Maximum amortization period of core deposits |  | 15 years |  |  |  |  |  |
Authorized issuance of shares of common stock |  |  |  | 300,000 |  |  |  |
"More likely than not" threshold |  | 50.00% |  |  |  |  |  |
Number of shares of common stock able to be repurchased |  |  | 150,000 |  |  |  |  |
Shares repurchased under plan | 15,663 |  |  |  |  |  |  |
Average price per share | $ 17.28 |  |  |  |  |  |  |
Maximum numbers of shares that may yet be purchased under plan | 134,337 |  |  |  |  |  |  |

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section B -Paragraph 11A -Chapter 1 -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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