Allowance for Loan Losses (Loan Portfolio Summarized by Categories) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	$ 587,640	$ 549,455
Commercial [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	169,472	139,126
Commercial loans secured by real estate [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	418,168	410,329
Pass [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	579,092	538,860
Pass [Member] | Commercial [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	166,822	132,665
Pass [Member] | Commercial loans secured by real estate [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	412,270	406,195
Special Mention [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	3,686	781
Special Mention [Member] | Commercial [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	744	161
Special Mention [Member] | Commercial loans secured by real estate [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	2,942	620
Substandard [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	4,715	9,402
Substandard [Member] | Commercial [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	1,778	6,164
Substandard [Member] | Commercial loans secured by real estate [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	2,937	3,238
Doubtful [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	147	412
Doubtful [Member] | Commercial [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	128	136
Doubtful [Member] | Commercial loans secured by real estate [Member]
Loan portfolio summarized by the aggregate Pass and the criticized categories of Special Mention, Substandard and Doubtful within the internal risk rating system
Loan portfolio	$ 19	$ 276