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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
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Jun. 30, 2014
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Dec. 31, 2013
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
$ 505,977
|
$ 530,926
|
| Stock warrants |
|
2
|
|
Mortgage-backed securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
214,635
|
217,059
|
|
U.S. government agency securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
77,864
|
83,536
|
|
Corporate bonds [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Total securities available for sale |
16,925
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20,835
|
|
Other securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
2,939
|
2,886
|
|
Equity security [Member]
|
|
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
250
|
|
|
U.S. treasury bills [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
|
19,997
|
|
Collateralized mortgage obligations [Member]
|
|
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
159,625
|
127,693
|
|
Municipal bonds-tax exempt [Member]
|
|
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
4,447
|
13,937
|
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Municipal bonds-taxable [Member]
|
|
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
16,731
|
32,354
|
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SBA loan pools securities [Member]
|
|
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
12,561
|
12,629
|
|
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
77,864
|
103,533
|
|
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets [Member] | U.S. government agency securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
77,864
|
83,536
|
|
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets [Member] | U.S. treasury bills [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
|
19,997
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
427,385
|
426,645
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|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Mortgage-backed securities [Member]
|
|
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
214,635
|
217,059
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Corporate bonds [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,925
|
20,835
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Other securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
2,939
|
2,886
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Equity security [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
250
|
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Collateralized mortgage obligations [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
159,625
|
127,693
|
|
Recurring Basis [Member] | Significant Unobservable Inputs [Member]
|
|
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
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| Total securities available for sale |
728
|
748
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| Stock warrants |
|
2
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|
Recurring Basis [Member] | Municipal bonds-tax exempt [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
3,719
|
13,189
|
|
Recurring Basis [Member] | Municipal bonds-tax exempt [Member] | Significant Unobservable Inputs [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
728
|
748
|
|
Recurring Basis [Member] | Municipal bonds-taxable [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,731
|
32,354
|
|
Recurring Basis [Member] | SBA loan pools securities [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
$ 12,561
|
$ 12,629
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