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Preferred Stock and Warrant - Additional Information (Detail) (USD $)
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1 Months Ended |
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1 Months Ended |
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Sep. 29, 2010
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Sep. 30, 2012
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Dec. 31, 2011
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Feb. 06, 2009
Series A Preferred Stock
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Sep. 29, 2010
Capital Purchase Program (CPP)
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Sep. 29, 2010
Capital Purchase Program (CPP)
After Five Years
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Sep. 29, 2010
Series CD Preferred Stock
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| Class of Stock [Line Items] |
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| Proceeds received from treasury |
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$ 5,000,000 |
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| Issuance of preferred stock, shares |
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5,000 |
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12,123 |
| Common Stock, shares repurchased |
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54,705 |
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| Warrant, exercise price |
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$ 13.71 |
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| Warrant, term period |
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10 years |
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| Preferred Stock, liquidation preference |
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$ 1,000 |
$ 1,000 |
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| Preferred stock, annual dividend rate |
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5.00% |
9.00% |
2.00% |
| Proceeds received from treasury, warrant |
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300,000 |
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| Net proceeds from issuance and redemption of preferred stock |
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4,700,000 |
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12,123,000 |
| Accretion of Series A Preferred Stock discount, maximum amount |
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$ 5,000,000 |
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| Series UST Fixed rate cumulative perpetual preferred shares exchangeed to Series CD Preferred stocks |
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5,000 |
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| Series CD Fixed rate cumulative perpetual preferred shares issued in exchange to Series UST Preferred stocks |
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5,000 |
| Limitations on payment of dividends on common stock |
no more than 100% of the aggregate per share dividend |
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| Dividend declared and paid, common stock |
$ 0.15 |
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