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Loans (Commercial and Retail Credit Exposure Credit Risk Profile by Internal Rating) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]      
Loans $ 1,083,395 $ 1,022,388 $ 990,207
Commercial Real Estate [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 236,895 198,019  
Commercial Real Estate [Member] | Pass [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 226,439 187,436  
Commercial Real Estate [Member] | Special Mention [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 4,137 3,316  
Commercial Real Estate [Member] | Substandard [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans $ 6,319 7,267  
Commercial Real Estate [Member] | Doubtful [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans    
Commercial Segment [Member] | Construction Loans [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans $ 15,744 33,102  
Commercial Segment [Member] | Construction Loans [Member] | Pass [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 13,986 30,422  
Commercial Segment [Member] | Construction Loans [Member] | Special Mention [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 1,309 1,721  
Commercial Segment [Member] | Construction Loans [Member] | Substandard [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans $ 449 959  
Commercial Segment [Member] | Construction Loans [Member] | Doubtful [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans    
Commercial Segment [Member] | Commercial and Industrial [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans $ 123,043 88,474  
Commercial Segment [Member] | Commercial and Industrial [Member] | Pass [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 119,540 84,746  
Commercial Segment [Member] | Commercial and Industrial [Member] | Special Mention [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 3,300 439  
Commercial Segment [Member] | Commercial and Industrial [Member] | Substandard [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans $ 203 2,848  
Commercial Segment [Member] | Commercial and Industrial [Member] | Doubtful [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 441  
Consumer [Member] | First Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans $ 491,451 517,063  
Consumer [Member] | First Mortgage [Member] | Pass [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 484,658 $ 509,765  
Consumer [Member] | First Mortgage [Member] | Special Mention [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans    
Consumer [Member] | First Mortgage [Member] | Substandard [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 6,793 $ 7,298  
Consumer [Member] | Second Mortgage [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 70,990 71,073  
Consumer [Member] | Second Mortgage [Member] | Pass [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 70,086 $ 70,299  
Consumer [Member] | Second Mortgage [Member] | Special Mention [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans    
Consumer [Member] | Second Mortgage [Member] | Substandard [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 904 $ 774  
Consumer [Member] | Automobile Loan [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 15,480 14,712  
Consumer [Member] | Automobile Loan [Member] | Pass [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 15,480 $ 14,704  
Consumer [Member] | Automobile Loan [Member] | Special Mention [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans    
Consumer [Member] | Automobile Loan [Member] | Substandard [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans   $ 8  
Consumer [Member] | Consumer Boat/RVs [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 123,621 94,761  
Consumer [Member] | Consumer Boat/RVs [Member] | Pass [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 123,490 $ 94,377  
Consumer [Member] | Consumer Boat/RVs [Member] | Special Mention [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans    
Consumer [Member] | Consumer Boat/RVs [Member] | Substandard [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 131 $ 384  
Consumer [Member] | Other [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 6,171 5,184  
Consumer [Member] | Other [Member] | Pass [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans 6,097 $ 5,125  
Consumer [Member] | Other [Member] | Special Mention [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans    
Consumer [Member] | Other [Member] | Substandard [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Loans $ 74 $ 59