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Mortgage Banking Activities	3 Months Ended
Mortgage Banking Activities	Mar. 31, 2012
Mortgage Banking Activities [Abstract]
Mortgage Banking Activities	7. Mortgage Banking Activities The Bank is obligated to repurchase certain loans sold to and serviced by others if they become delinquent as defined by various agreements. At March 31, 2012 and December 31, 2011, these contingent obligations were approximately $24.2 million and $30.2 million, respectively. Management believes it is remote that, as of March 31, 2012 the Company would have to repurchase these obligations and therefore no reserve has been established for this purpose.