Loans and Allowance for Loan Losses (Consumer) (Details 3) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Real estate [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	$ 175,954	$ 174,802
Home equity [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	118,888	116,563
Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	48,349	43,318
Other [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	16,530	15,080
Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	352,517	341,955
Pass [Member] | Real estate [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	173,624	172,589
Pass [Member] | Home equity [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	115,370	112,080
Pass [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	47,354	42,319
Pass [Member] | Other [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	16,169	14,967
Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	4,083	4,394
Special Mention [Member] | Real estate [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	1,084	961
Special Mention [Member] | Home equity [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	$ 2,703	$ 3,388
Special Mention [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Special Mention [Member] | Other [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	$ 296	$ 45
Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	3,121	3,414
Substandard [Member] | Real estate [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	1,246	1,252
Substandard [Member] | Home equity [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	815	1,095
Substandard [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	995	999
Substandard [Member] | Other [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	$ 65	$ 68
Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Doubtful [Member] | Real estate [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Doubtful [Member] | Home equity [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Doubtful [Member] | Construction [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Doubtful [Member] | Other [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans