Loans (Summary of TDRs with a Payment Default During the Period) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014 Loans	Sep. 30, 2013 Loans	Sep. 30, 2014 Loans	Sep. 30, 2013 Loans
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract	4	12	18	42
Financing receivable modification subsequent default recorded investment	$ 162	$ 4,803	$ 3,390	$ 8,171
Consumer Portfolio Segment [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract	4	6	7	15
Financing receivable modification subsequent default recorded investment	162	142	242	645
Commercial [Member] | Commercial Loan Portfolio [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract	0	2	6	19
Financing receivable modification subsequent default recorded investment	0	1,047	875	2,100
Real estate commercial [Member] | Commercial Loan Portfolio [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract	0	4	5	5
Financing receivable modification subsequent default recorded investment	0	3,614	2,273	3,740
Real Estate Construction Loans [Member] | Commercial Loan Portfolio [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract		0		1
Financing receivable modification subsequent default recorded investment		0		160
Land Development Loans [Member] | Commercial Loan Portfolio [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract		0		2
Financing receivable modification subsequent default recorded investment		0		1,526
Subtotal-commercial loan portfolio [Member] | Commercial Loan Portfolio [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract	0	6	11	27
Financing receivable modification subsequent default recorded investment	$ 0	$ 4,661	$ 3,148	$ 7,526