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Preferred Stock (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 11, 2011 | Jun. 30, 2012 | Jun. 30, 2012 | Dec. 31, 2011 | Jun. 30, 2011
Preferred Stock (Textual) [Abstract] |  |  |  |  |
Number of shares of Fixed Rate Cumulative Perpetual Preferred Stock Series D |  | 21,000 | 21,000 | 21,000 |
Preferred Stock (Additional Textual) [Abstract] |  |  |  |  |
Aggregate purchase price of fixed rate cumulative perpetual preferred stock | $ 21 |  |  |  |
Repurchase of preferred stock, shares outstanding |  | 21,000 | 21,000 |  |
Percentage of lending incentive fee payable |  | 0.50% |  |  |
Minimum percentage tier one capital to be maintain |  |  |  |  | 90.00%
Preferred stock, shares outstanding |  | 21,000 | 21,000 | 21,000 |
Preferred Stock, Shares Issued |  | 21,000 | 21,000 | 21,000 |
Increased percentage of lending incentive fee |  |  | 1.00% |  |
Noncumulative Series E Preferred Stock [Member] |  |  |  |  |
Preferred Stock (Textual) [Abstract] |  |  |  |  |
Number of shares of Fixed Rate Cumulative Perpetual Preferred Stock Series D | 21,000 |  |  |  |
Preferred stock, interest rate, percentage |  |  | 9.00% |  |
Preferred Stock (Additional Textual) [Abstract] |  |  |  |  |
Preferred Stock, Shares Issued | 21,000 |  |  |  |
Noncumulative Series E Preferred Stock [Member] | Minimum [Member] |  |  |  |  |
Preferred Stock (Textual) [Abstract] |  |  |  |  |
Preferred stock, interest rate, percentage |  |  | 1.00% |  |
Noncumulative Series E Preferred Stock [Member] | Maximum [Member] |  |  |  |  |
Preferred Stock (Textual) [Abstract] |  |  |  |  |
Preferred stock, interest rate, percentage |  |  | 5.00% |  |
Series E Preferred Stock [Member] |  |  |  |  |
Preferred Stock (Textual) [Abstract] |  |  |  |  |
Redemption price of series E preferred stock |  |  | 100.00% |  |

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- Definition Increased percentage of lending incentive fee. + References No definition available. + Details
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- Definition Minimum percentage tier one capital to be maintain. + 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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