Loans and Allowance for Loan Losses (Troubled Debt Restructuring) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014 loans	Jun. 30, 2013 loans	Jun. 30, 2014 loans	Jun. 30, 2013 loans
Financing Receivable, Modifications [Line Items]
Number of loans	1	6	7	11
Pre-modification outstanding recorded investment	$ 17	$ 1,489	$ 752	$ 4,417
Post-modification outstanding recorded investment	21	1,429	828	4,009
Loans modified, extended terms			2	2
Loans modified, interest rate modification			5	1
Loans modified, extended terms and interest rate modification				8
Commercial and agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	0	0	0	0
Pre-modification outstanding recorded investment	0	0	0	0
Post-modification outstanding recorded investment	0	0	0	0
Real estate - construction [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	0	1	0	1
Pre-modification outstanding recorded investment	0	114	0	114
Post-modification outstanding recorded investment	0	114	0	114
Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1	4	7	8
Pre-modification outstanding recorded investment	17	915	752	2,692
Post-modification outstanding recorded investment	21	894	828	2,667
Real estate - mortgage, commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	0	1	0	2
Pre-modification outstanding recorded investment	0	460	0	1,611
Post-modification outstanding recorded investment	0	421	0	1,228
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	0	0	0	0
Pre-modification outstanding recorded investment	0	0	0	0
Post-modification outstanding recorded investment	$ 0	$ 0	$ 0	$ 0