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Earnings Per Common Share (Details Textual) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011
Earnings per common share (Additional Textual) [Abstract] |  |
Each share convertible into shares | 69 |
Minimum time for conversion | 5 years |
Date for redeem shares at face value | May 20, 2014 |
Series A preferred stock [Member] |  |
Earnings Per Common Share (Textual) [Abstract] |  |
Number of Series A Noncumulative Preferred Stock Shares | 17,921 | 18,921
Dividend Rate | 6.00% |

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- Definition Minimum time for conversion of preferred securities in to common stock. + References No definition available. + Details
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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