Loans (Summary of Performing and Nonperforming TDRs Modified During the Period) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) Loans	Dec. 31, 2014 USD ($) Loans	Dec. 31, 2013 USD ($) Loans
Commercial Loan Portfolio [Member]
Schedule providing information on performing and nonperforming TDRs
Performing and nonperforming modified TDRs, Number of loans | Loans	142	219	199
Performing and nonperforming modified TDRs, Pre-modification recorded investment	$ 22,596	$ 30,112	$ 35,821
Performing and nonperforming modified TDRs, Post-modification recorded investment	$ 22,594	$ 30,086	$ 35,718
Commercial [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on performing and nonperforming TDRs
Performing and nonperforming modified TDRs, Number of loans | Loans	53	53	57
Performing and nonperforming modified TDRs, Pre-modification recorded investment	$ 11,446	$ 13,781	$ 12,123
Performing and nonperforming modified TDRs, Post-modification recorded investment	$ 11,446	$ 13,781	$ 12,123
Real estate commercial [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on performing and nonperforming TDRs
Performing and nonperforming modified TDRs, Number of loans | Loans	21	46	49
Performing and nonperforming modified TDRs, Pre-modification recorded investment	$ 7,196	$ 12,075	$ 16,222
Performing and nonperforming modified TDRs, Post-modification recorded investment	$ 7,196	$ 12,075	$ 16,222
Real Estate Construction Loans [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on performing and nonperforming TDRs
Performing and nonperforming modified TDRs, Number of loans | Loans	2	0	4
Performing and nonperforming modified TDRs, Pre-modification recorded investment	$ 400	$ 0	$ 575
Performing and nonperforming modified TDRs, Post-modification recorded investment	$ 400	$ 0	$ 575
Land development [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on performing and nonperforming TDRs
Performing and nonperforming modified TDRs, Number of loans | Loans	1	1	4
Performing and nonperforming modified TDRs, Pre-modification recorded investment	$ 305	$ 72	$ 1,958
Performing and nonperforming modified TDRs, Post-modification recorded investment	$ 305	$ 72	$ 1,958
Commercial loan portfolio [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on performing and nonperforming TDRs
Performing and nonperforming modified TDRs, Number of loans | Loans	77	100	114
Performing and nonperforming modified TDRs, Pre-modification recorded investment	$ 19,347	$ 25,928	$ 30,878
Performing and nonperforming modified TDRs, Post-modification recorded investment	$ 19,347	$ 25,928	$ 30,878
Consumer loan portfolio (real estate residential) [Member] | Consumer Portfolio Segment [Member]
Schedule providing information on performing and nonperforming TDRs
Performing and nonperforming modified TDRs, Number of loans | Loans	65	119	85
Performing and nonperforming modified TDRs, Pre-modification recorded investment	$ 3,249	$ 4,184	$ 4,943
Performing and nonperforming modified TDRs, Post-modification recorded investment	$ 3,247	$ 4,158	$ 4,840