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Loans Receivable and Allowance for Loan Losses (Loans Acquired and Accounted for in Accordance with ASC 310-30) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
May 31, 2011
Loans Receivable and Allowance for Loan Losses [Abstract]      
Outstanding Balance $ 1,145 $ 1,412 $ 1,900
Carrying Amount $ 1,069 $ 1,241