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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 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Average recorded investment in impaired loans and related interest income recognized        
Average investment in impaired loans $ 1,729 $ 2,296 $ 2,001 $ 2,678
Interest income recognized:        
Interest income recognized on a cash basis on impaired loans 15 $ 1 22 $ 2
Commercial [Member]        
Average recorded investment in impaired loans and related interest income recognized        
Average investment in impaired loans 220   110  
Interest income recognized:        
Interest income recognized on a cash basis on impaired loans 10   11  
Commercial loans secured by real estate [Member]        
Average recorded investment in impaired loans and related interest income recognized        
Average investment in impaired loans 1,509 $ 2,296 1,891 $ 2,678
Interest income recognized:        
Interest income recognized on a cash basis on impaired loans $ 5 $ 1 $ 11 $ 2