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Fair Value Measurements (Details Textual) (USD $)
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6 Months Ended | |||||
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2010
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Loans Held for Sale | $ 5,138,000 | $ 55,993,000 | $ 22,587,000 | $ 44,105,000 | $ 47,649,000 | $ 36,620,000 |
| Fair Value Measurements (Additional Textual) [Abstract] | ||||||
| Exercise price of stock warrants | 9.60 | 9.60 | ||||
| Class of warrant or rights date from which warrants or rights expiration date | Oct. 14, 2015 | |||||
| Maturities of term federal funds | 90 days | |||||
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Non-performing Loans Held for Sale [Member] | Small Business Administration Loans Held for Sale [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | 484,000 | 6,000,000 | ||||
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Non-performing Loans Held for Sale [Member] | Residential property loan [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | 266,000 | |||||
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Non-performing Loans Held for Sale [Member] | Commercial term loan [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | 3,000,000 | 12,000,000 | ||||
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Non-performing Loans Held for Sale [Member] | Commercial Property Loan [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | 418,000 | |||||
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Impaired Loans [Member] | Real estate loans [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Impaired Loans | 5,200,000 | 73,700,000 | ||||
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Impaired Loans [Member] | Commercial and Industrial Loans [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Impaired Loans | 27,400,000 | 103,700,000 | ||||
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Impaired Loans [Member] | Consumer Loan [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Impaired Loans | 1,000,000 | 732,000 | ||||
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Other Real Estate Owned [Member] | Small Business Administration Loans Held for Sale [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | 725,000 | 990,000 | ||||
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Other Real Estate Owned [Member] | Commercial Property Loan [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | 346,000 | 308,000 | ||||
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Level 1 Quoted Prices in Active Markets for Identical Assets [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | ||||||
| Impaired Loans | ||||||
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Level 2 Significant Observable Inputs With No Active Market With Identical Characteristics [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | ||||||
| Impaired Loans | 22,694,000 | 33,071,000 | ||||
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Level 2 Significant Observable Inputs With No Active Market With Identical Characteristics [Member] | Small Business Administration Loans Held for Sale [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Loans Held for Sale | 360,000 | 5,100,000 | ||||
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Level 3 Significant Unobservable Inputs [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Non-Performing Loans Held for sale | 3,489,000 | 18,683,000 | ||||
| Impaired Loans | 10,911,000 | 145,019,000 | ||||
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Level 3 Significant Unobservable Inputs [Member] | Non-performing Loans Held for Sale [Member] | Nonrecurring basis [Member]
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| Fair Value Measurements (Textual) [Abstract] | ||||||
| Loans Held for Sale | $ 3,500,000 | $ 15,000,000 |