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Other Intangible Assets (Amortization Expense) (Details) (Core Deposits, USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Core Deposits
   
Acquired Finite-Lived Intangible Assets [Line Items]    
2013 $ 46  
2014 26  
Accumulated amortization $ 72 $ 189