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Loans Receivable, Credit Quality for Loans and the Allowance for Loan Losses - Schedule of Loans by Loan Portfolio Segments on Nonaccrual Status (Detail) (USD $)
In Thousands, unless otherwise specified
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Dec. 31, 2013
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Dec. 31, 2012
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| Financing Receivable, Recorded Investment, Past Due [Line Items] |
|
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| Loans on nonaccrual status |
$ 7,013 |
$ 3,863 |
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Commercial [Member]
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|
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| Financing Receivable, Recorded Investment, Past Due [Line Items] |
|
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| Loans on nonaccrual status |
324 |
190 |
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Commercial Real Estate Non-owner Occupied [Member]
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|
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| Financing Receivable, Recorded Investment, Past Due [Line Items] |
|
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| Loans on nonaccrual status |
3,990 |
1,159 |
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Commercial Real Estate Owner Occupied [Member]
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|
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| Financing Receivable, Recorded Investment, Past Due [Line Items] |
|
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| Loans on nonaccrual status |
674 |
399 |
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Commercial Real Estate 1-4 Family Investment [Member]
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|
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| Financing Receivable, Recorded Investment, Past Due [Line Items] |
|
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| Loans on nonaccrual status |
168 |
389 |
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Commercial Land and Land Development [Member]
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|
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| Financing Receivable, Recorded Investment, Past Due [Line Items] |
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| Loans on nonaccrual status |
215 |
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Residential Real Estate [Member]
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|
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| Financing Receivable, Recorded Investment, Past Due [Line Items] |
|
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| Loans on nonaccrual status |
1,167 |
1,173 |
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Home Equity Lines of Credit [Member]
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|
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| Financing Receivable, Recorded Investment, Past Due [Line Items] |
|
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| Loans on nonaccrual status |
$ 475 |
$ 553 |