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Going Concern Considerations and Managements Plans - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 1 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 09, 2012 | Sep. 30, 2012 | Aug. 20, 2012 | May 04, 2012 | Dec. 31, 2011 | Aug. 09, 2011
Core capital |  | 8.00% |  |  |  |
Risk-based capital |  | 12.00% |  |  |  |
Registered common stock offering, maximum |  |  |  |  |  | $ 30,000
Rights offering |  |  | 18,000 |  |  | 24,965
Offering to a group of standby purchasers |  |  | 4,500 |  |  | 5,035
Reverse stock split |  |  |  | 0.2 |  |
Each subscription right entitled the holder to purchase Each?Subscription?Right?Offering?Entitled?Holder?To?Purchase 6.0474 |  |  | 14.5329 |  |  | 6.0474
Each subscription right entitled the holder of the right to purchase, price |  |  | 1.50 |  |  | 1.00
Rights offering available to the public, price |  |  | $ 1.50 |  |  | $ 1.00
One warrant to purchase one additional share of common stock at a purchase price |  |  |  |  |  | $ 1.00
Exercisable period for warrants | 3 years |  |  |  |  |
Standby purchasers entitled to acquire |  |  | 3,000,000 |  |  | 5,000,000
Standby purchasers entitled to acquire, purchase price |  |  | $ 1.00 |  |  | $ 1.50
Purchase of shares of common stock upon the receipt, minimum |  |  | 13,500 |  |  | 16,500
Rights offering period expiry date |  |  | Jul. 16, 2012 |  |  |
Unsubscribed shares issuing beginning balance |  |  | Jul. 17, 2012 |  |  |
Sales of common stock |  | 15,936,417 | 15,000,000 |  | 937,417 |
Common stock price per share |  |  | $ 1.50 |  |  |
Proceeds from sale of common stock |  | 20,286 | 22,500 |  |  |
Common stock issuance expense |  |  | 2,214 |  |  |
Cash Available |  | 5,268 |  |  |  |
Redemption of the TARP obligations |  | (3,000) |  |  |  |
Capital contribution |  | 13,500 |  |  |  |
Unprofitable number of years |  | 3 years |  |  |  |
Brokered deposits |  | 36,039 |  |  |  |
Unpledged securities and deposits in other financial institutions |  | $ 66,946 |  |  |  |

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