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Allowance for Loan Losses (Average Recorded Investment in Impaired Loans and Related Interest Income Recognized) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Average recorded investment in impaired loans and related interest income recognized        
Average investment in impaired loans $ 1,348 $ 1,897 $ 1,795 $ 2,012
Interest income recognized:        
Interest income recognized on a cash basis on impaired loans 12 $ 4 33 $ 6
Commercial [Member]        
Average recorded investment in impaired loans and related interest income recognized        
Average investment in impaired loans 347 189
Interest income recognized:        
Interest income recognized on a cash basis on impaired loans 7 17
Commercial loans secured by real estate [Member]        
Average recorded investment in impaired loans and related interest income recognized        
Average investment in impaired loans 966 $ 1,897 1,583 $ 2,012
Interest income recognized:        
Interest income recognized on a cash basis on impaired loans 5 $ 4 15 $ 6
Consumer [Member]        
Average recorded investment in impaired loans and related interest income recognized        
Average investment in impaired loans $ 35 23
Interest income recognized:        
Interest income recognized on a cash basis on impaired loans $ 1