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Goodwill and Other Intangible Assets (Details 1) (Core Deposits [Member], USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Core Deposits [Member]
 
Summary of core deposit intangibles  
Core deposit intangibles, beginning balance $ 1,460
Core deposit intangibles, Additions   
Core deposit intangibles, Reductions   
Core deposit intangibles, ending balance 1,460
Accumulated amortization, beginning balance (159)
Accumulated amortization, Additions   
Accumulated amortization, Reductions (157)
Accumulated amortization, ending balance (316)
Core deposit intangibles, net, beginning balance 1,301
Core deposit intangible, net, Additions   
Core deposit intangible, net, Reductions (157)
Core deposit intangibles, net, ending balance $ 1,144