Loans (Summary of TDRs Modified During the Period) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015 Loans	Mar. 31, 2014 Loans
Schedule providing information on TDRs
Modified TDRs, Number of loans	20	52
Modified TDRs, Pre-modification recorded investment	$ 4,802	$ 12,205
Modified TDRs, Post-modification recorded investment	4,802	12,196
Subtotal-commercial loan portfolio [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on TDRs
Modified TDRs, Number of loans	10	22
Modified TDRs, Pre-modification recorded investment	4,466	11,218
Modified TDRs, Post-modification recorded investment	4,466	11,218
Consumer loan portfolio [Member] | Consumer Portfolio Segment [Member]
Schedule providing information on TDRs
Modified TDRs, Number of loans	10	30
Modified TDRs, Pre-modification recorded investment	336	987
Modified TDRs, Post-modification recorded investment	336	978
Commercial [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on TDRs
Modified TDRs, Number of loans	5	12
Modified TDRs, Pre-modification recorded investment	1,932	8,356
Modified TDRs, Post-modification recorded investment	1,932	8,356
Real estate commercial [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on TDRs
Modified TDRs, Number of loans	5	9
Modified TDRs, Pre-modification recorded investment	2,534	2,790
Modified TDRs, Post-modification recorded investment	2,534	2,790
Real Estate Construction Loans [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on TDRs
Modified TDRs, Number of loans		0
Modified TDRs, Pre-modification recorded investment		0
Modified TDRs, Post-modification recorded investment		0
Land development [Member] | Commercial Loan Portfolio [Member]
Schedule providing information on TDRs
Modified TDRs, Number of loans	0	1
Modified TDRs, Pre-modification recorded investment	0	72
Modified TDRs, Post-modification recorded investment	$ 0	$ 72