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Investment Securities Available-for-Sale - Summary of Amortized Cost and Estimated Fair Values of Investment Securities Available-for-Sale (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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| Schedule of Available-for-sale Securities [Line Items] |
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|
| Amortized Cost |
$ 58,068 |
$ 44,144 |
| Gross Unrealized Gains |
243 |
1,021 |
| Gross Unrealized Losses |
1,065 |
64 |
| Fair Value |
57,246 |
45,101 |
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U.S. Government Agency Securities [Member]
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|
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| Schedule of Available-for-sale Securities [Line Items] |
|
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| Amortized Cost |
1,405 |
3,500 |
| Gross Unrealized Gains |
|
6 |
| Gross Unrealized Losses |
49 |
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| Fair Value |
1,356 |
3,506 |
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State and Municipal [Member]
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|
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| Schedule of Available-for-sale Securities [Line Items] |
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| Amortized Cost |
37,686 |
22,252 |
| Gross Unrealized Gains |
176 |
665 |
| Gross Unrealized Losses |
819 |
64 |
| Fair Value |
37,043 |
22,853 |
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Mortgage-Backed Securities [Member]
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|
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| Schedule of Available-for-sale Securities [Line Items] |
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| Amortized Cost |
13,226 |
12,837 |
| Gross Unrealized Gains |
43 |
169 |
| Gross Unrealized Losses |
128 |
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| Fair Value |
13,141 |
13,006 |
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Collateralized Mortgage Obligations (CMOs) [Member]
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| Schedule of Available-for-sale Securities [Line Items] |
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| Amortized Cost |
3,387 |
5,555 |
| Gross Unrealized Gains |
8 |
181 |
| Gross Unrealized Losses |
65 |
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| Fair Value |
3,330 |
5,736 |
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Corporate Debt Obligations [Member]
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| Schedule of Available-for-sale Securities [Line Items] |
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| Amortized Cost |
1,852 |
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| Gross Unrealized Gains |
1 |
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| Gross Unrealized Losses |
2 |
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| Fair Value |
1,851 |
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Equity Securities, Financial Services [Member]
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|
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| Schedule of Available-for-sale Securities [Line Items] |
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| Amortized Cost |
512 |
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| Gross Unrealized Gains |
15 |
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| Gross Unrealized Losses |
2 |
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| Fair Value |
$ 525 |
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