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Deposits - Components of Outstanding Balances and Percentage Change in Deposits (Detail) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012
Deposits By Component Alternative [Abstract] |  |
Noninterest-bearing demand | $ 224,580,000 | $ 190,241,000
Interest-bearing checking | 197,388,000 | 188,057,000
Money market | 133,369,000 | 144,479,000
Savings | 52,606,000 | 56,454,000
Time, under $100,000 | 43,251,000 | 51,730,000
Time, $100,000 and over | 254,600,000 | 234,430,000
Total Local Deposits | 905,794,000 | 865,391,000
Out-of-area interest-bearing checking | 0 | 21,967,000
Out-of-area time, under $100,000 | 4,078,000 | 7,706,000
Out-of-area time, $100,000 and over | 209,039,000 | 240,140,000
Total out-of-area deposits | 213,117,000 | 269,813,000
Total deposits | $ 1,118,911,000 | $ 1,135,204,000
Percentage of Noninterest-bearing demand | 20.10% | 16.80%
Percentage of Interest-bearing checking | 17.60% | 16.50%
Percentage of Money market | 11.90% | 12.70%
Percentage of Savings | 4.70% | 5.00%
Percentage of time, under $100,000 | 3.90% | 4.60%
Percentage of time, $100,000 and over | 22.80% | 20.60%
Percentage of total local deposits | 81.00% | 76.20%
Percentage of out-of-area interest-bearing checking |  | 1.90%
Percentage of out-of-area time, under $100,000 | 0.40% | 0.70%
Percentage of out-of-area time, $100,000 and over | 18.60% | 21.20%
Aggregate percentage of out-of-area deposits | 19.00% | 23.80%
Aggregate percentage of total deposits | 100.00% | 100.00%
Percentage of Increase or (Decrease) in Noninterest-bearing demand | 18.10% |
Percentage of Increase or (Decrease) of Interest-bearing checking Deposits | 5.00% |
Percentage of Increase or (Decrease) of Money market Deposits | (7.70%) |
Percentage of Increase or (Decrease) of Savings Deposits | (6.80%) |
Percentage of Increase or (Decrease) in Time, under $100,000 | (16.40%) |
Percentage of Increase or (Decrease) in Time, $100,000 and over | 8.60% |
Percentage of Increase or (Decrease) in Total Local Deposits | 4.70% |
Percentage of Increase or (Decrease) in out-of-area interest-bearing checking |  |
Percentage of Increase or (Decrease) in out-of- area time, under $100,000 | (47.10%) |
Percentage Increase or (Decrease) in out-of-area time, $100,000 and over | (13.00%) |
Aggregate Percentage Increase or (Decrease) in out-of-area deposits | (21.00%) |
Aggregate Percentage Increase or (Decrease) in Total Deposits | (1.40%) |

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