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Deposits (Narrative) (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Certificates of deposit $ 92,696,000  
Deposits held for related parties 11,400,000  
Deposits held for related parties 11,400,000 5,100,000
CDARS [Member]
   
Number of banks in CDARS 3,000  
Percentage of coverage of certificates of deposit in CDARS 100.00%  
Certificates of deposit $ 155,000 $ 250,000