Annual report pursuant to Section 13 and 15(d)

FHLB Advances and Other Borrowings - Summary of Contractual Maturities Pertaining to FHLB (Detail)

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FHLB Advances and Other Borrowings - Summary of Contractual Maturities Pertaining to FHLB (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]  
Year of Maturity, 2013, Amount $ 395
Year of Maturity, 2014, Amount 2,540
Year of Maturity, 2015, Amount   
Year of Maturity, Total Amount $ 2,935
Year of Maturity, 2013, Weighted-Average Interest Rate 5.27%
Year of Maturity, 2014, Weighted-Average Interest Rate 5.27%
Year of Maturity, 2015, Weighted-Average Interest Rate   
Year of Maturity, Total, Weighted-Average Interest Rate 5.27%