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Loan and Lease Finance Receivables and Allowance for Credit Losses (Details Textual 1) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Mar. 31, 2012 | Mar. 31, 2011 | Dec. 31, 2011
Allowance for Credit Losses and Loans & Lease Real Estate Owned (Non-Covered Loans) (Textual) [Abstract] |  |  |
Provision for unfunded commitments | $ 0 | $ 732 |
Interest income, Recognized | 583 |  | 2,225
Number of days after which interest on loan is discontinued | 90 days |  |
Nonperforming Financing Receivable [Member] |  |  |
Allowance for Credit Losses and Loans & Lease Real Estate Owned (Non-Covered Loans) (Textual) [Abstract] |  |  |
Interest income, Recognized | $ 594,000 | $ 831,000 |

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- Definition Number of days after which interest on loan is discontinued. + References No definition available. + Details
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- Definition Provision for unfunded commitments. + References No definition available. + Details
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- Definition The interest income recognized during the time within that period that the financing receivables were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5212-111524 -Subparagraph (c)(2) + Details
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