Loans (Schedule of Financing Receivable Recorded Investment Credit Quality Indicator) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Loans $ 918,894 $ 872,129 $ 808,240
Nonperforming Financing Receivable [Member]      
Loans 11,400    
Commercial Equipment [Member]      
Loans 29,931 26,152 23,738
Commercial Equipment [Member] | Unrated [Member]      
Loans 10,074 7,173  
Commercial Equipment [Member] | Pass [Member]      
Loans $ 19,610 $ 18,517  
Commercial Equipment [Member] | Special Mention [Member]      
Loans  
Commercial Equipment [Member] | Substandard [Member]      
Loans $ 110 $ 462  
Commercial Equipment [Member] | Doubtful [Member]      
Loans $ 137  
Commercial Equipment [Member] | Loss [Member]      
Loans  
Commercial Loans [Member]      
Loans $ 67,246 $ 73,625 94,176
Commercial Loans [Member] | Unrated [Member]      
Loans 11,281 12,296  
Commercial Loans [Member] | Pass [Member]      
Loans $ 51,569 53,844  
Commercial Loans [Member] | Special Mention [Member]      
Loans 49  
Commercial Loans [Member] | Substandard [Member]      
Loans $ 4,110 $ 7,436  
Commercial Loans [Member] | Doubtful [Member]      
Loans $ 286  
Commercial Loans [Member] | Loss [Member]      
Loans  
Consumer Loans [Member]      
Loans $ 366 $ 613 838
Consumer Loans [Member] | Performing Financing Receivable [Member]      
Loans $ 366 $ 613  
Consumer Loans [Member] | Nonperforming Financing Receivable [Member]      
Loans  
Home Equity and Second Mortgage [Member]      
Loans $ 21,716 $ 21,452 21,692
Home Equity and Second Mortgage [Member] | Performing Financing Receivable [Member]      
Loans 21,668 21,053  
Home Equity and Second Mortgage [Member] | Nonperforming Financing Receivable [Member]      
Loans 48 399  
Residential First Mortgages [Member]      
Loans 149,967 152,837 159,147
Residential First Mortgages [Member] | Performing Financing Receivable [Member]      
Loans 148,019 152,304  
Residential First Mortgages [Member] | Nonperforming Financing Receivable [Member]      
Loans 1,948 533  
Construction and Land Development [Member]      
Loans 36,189 36,370 32,001
Construction and Land Development [Member] | Unrated [Member]      
Loans 4,399 3,108  
Construction and Land Development [Member] | Pass [Member]      
Loans $ 27,507 $ 27,160  
Construction and Land Development [Member] | Special Mention [Member]      
Loans  
Construction and Land Development [Member] | Substandard [Member]      
Loans $ 3,845 $ 6,102  
Construction and Land Development [Member] | Doubtful [Member]      
Loans $ 438  
Construction and Land Development [Member] | Loss [Member]      
Loans  
Commercial Real Estate [Member]      
Loans $ 613,479 $ 561,080 $ 476,648
Commercial Real Estate [Member] | Unrated [Member]      
Loans 70,661 74,955  
Commercial Real Estate [Member] | Pass [Member]      
Loans 519,330 451,256  
Commercial Real Estate [Member] | Special Mention [Member]      
Loans 1,095 4,383  
Commercial Real Estate [Member] | Substandard [Member]      
Loans $ 22,393 $ 30,486  
Commercial Real Estate [Member] | Doubtful [Member]      
Loans  
Commercial Real Estate [Member] | Loss [Member]      
Loans  
Classified Loans [Member]      
Loans $ 32,804 $ 46,735  
Classified Loans [Member] | Classified Loans By Internally Assigned Grade [Member]      
Loans 31,319 44,486  
Classified Loans [Member] | Classified Loans By Payment Activity [Member]      
Loans $ 1,485 $ 2,249