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Guarantees, Commitments and Contingencies - Summary of Commitments and Contingent Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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Dec. 31, 2012
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| Summary Of Commitments And Contingent Liabilities [Line Items] | ||
| Commitments and contingent liabilities | ||
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Standby Letters of Credit [Member]
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| Summary Of Commitments And Contingent Liabilities [Line Items] | ||
| Commitments and contingent liabilities | 931 | 1,092 |
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Commitments to Extend Credit [Member]
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| Summary Of Commitments And Contingent Liabilities [Line Items] | ||
| Commitments and contingent liabilities | $ 28,875 | $ 32,123 |