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SECURITIES - Activity related to credit losses recognized into earnings (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Accounting Policies [Abstract]    
Balance, beginning of period $ 1,128 $ 1,128
Credit component on debt securities in which OTTI was not previously recognized      
Balance, end of period $ 1,128 $ 1,128