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Executive Benefit Agreements and Employee Savings Plans (Details Textual) (USD $) |  |  | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2011 Death Benefit 1981 Agreements [Member] Installment | Dec. 31, 2011 Death Benefit 1992 Agreements [Member] Installment | Dec. 31, 2011 Death Benefit 2005 Agreement [Member]
Executive Benefit Agreements and Employee Savings Plans (Textual) [Abstract] |  |  |  |  |
Number of equal monthly installments to be paid to the beneficiary under Agreements |  |  | 120 | 120 |
Total monthly installments under 1981 Agreements |  |  | $ 34,000 |  |
Minimum amount payable in monthly installments when the employee reaches age 65 under 1992 Agreements |  |  |  | 16,000 |
Maximum amount payable in monthly installments when the employee reaches age 65 under 1992 Agreements |  |  |  | 18,000 |
Amount paid to CEO's designated beneficiary under 2005 Agreement |  |  |  |  | 2,500,000
Minimum amount of life insurance policies to be kept by the company for 2005 Agreement |  |  |  |  | 2,500,000
Face value of life insurance policies for CEO | $ 21,522,000 | $ 21,522,000 |  |  | $ 7,000,000

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- Definition This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 30 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6384206&loc=d3e41899-111602 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Technical Bulletin (FTB) -Number 85-4 -Paragraph 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 FASB -Name Emerging Issues Task Force (EITF) -Number 06-5 -Paragraph 6, 7, 8, 9, 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 12 -Article 5 + Details
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