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Restrictions Of Cash	9 Months Ended
Restrictions Of Cash	Sep. 30, 2012
Restrictions Of Cash [Abstract]
Restrictions Of Cash	Note 4. Restrictions of Cash To comply with Federal Reserve regulations, the Bank is required to maintain certain average cash reserve balances. The daily average cash reserve requirement for the weeks closest to September 30, 2012 and December 31, 2011 was $2.6 million and $1.5 million, respectively.