Loans and Allowance for Loan Losses (Troubled Debt Restructuring) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 loans	Mar. 31, 2013 loans
Financing Receivable, Modifications [Line Items]
Number of loans	6	5
Pre-modification outstanding recorded investment	$ 746	$ 2,928
Post-modification outstanding recorded investment	743	2,580
Loans modified, extended terms	2
Loans modified, interest rate modification	4
Commercial and agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	1	0
Pre-modification outstanding recorded investment	11	0
Post-modification outstanding recorded investment	11	0
Real estate - construction [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	0	0
Pre-modification outstanding recorded investment	0	0
Post-modification outstanding recorded investment	0	0
Real estate - mortgage, 1-4 family residential [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	5	4
Pre-modification outstanding recorded investment	735	1,777
Post-modification outstanding recorded investment	732	1,773
Real estate - mortgage, commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	0	1
Pre-modification outstanding recorded investment	0	1,151
Post-modification outstanding recorded investment	0	807
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of loans	0	0
Pre-modification outstanding recorded investment	0	0
Post-modification outstanding recorded investment	$ 0	$ 0