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Income Taxes - Schedule of Effective Income Tax Rate (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Income Tax Disclosure [Abstract] | ||||||||||
| Income tax expense at federal statutory rate | $ 1,848 | $ 1,000 | ||||||||
| Increase (decrease) resulting from: | ||||||||||
| Tax-exempt interest | (394) | (375) | ||||||||
| State income tax expense, net of federal income taxes | 190 | 102 | ||||||||
| Other | (135) | 18 | ||||||||
| Total | $ 303 | $ 350 | $ 512 | $ 344 | $ 588 | $ 517 | $ 622 | $ (982) | $ 1,509 | $ 745 |