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Investment Securities (Narrative) (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012
Schedule of Investments [Line Items] |  |
Geographic Concentration | 25.00% |
Debt Securities Realized Loss | $ 24,000 |
Available-for-sale Securities Pledged as Collateral | 109,300,000 | 96,100,000
Reclassification Of Available For Sale Investment Securities To Held To Maturity At Fair Value | 138,300,000 |
ALESCO Preferred Funding VII [Member] |  |
Schedule of Investments [Line Items] |  |
Other Asset Impairment Charges | $ 628,000 |
Collateralized mortgage obligations [Member] | California [Member] |  |
Schedule of Investments [Line Items] |  |
Geographic Concentration | 18.20% |
Collateralized mortgage obligations [Member] | Arizona [Member] |  |
Schedule of Investments [Line Items] |  |
Geographic Concentration | 10.50% |
Collateralized mortgage obligations [Member] | Virginia [Member] |  |
Schedule of Investments [Line Items] |  |
Geographic Concentration | 6.10% |
Collateralized mortgage obligations [Member] | Florida [Member] |  |
Schedule of Investments [Line Items] |  |
Geographic Concentration | 6.50% |
Collateralized mortgage obligations [Member] | Nevada [Member] |  |
Schedule of Investments [Line Items] |  |
Geographic Concentration | 6.30% |

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