Loans and the Allowance for Loan Losses (Details 4) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013 Loan	Dec. 31, 2012 Loan
Restructured loans
Number of Loans (loans)	36	36
Pre-Modification Outstanding Recorded Investment	$ 32,183	$ 37,619
Post-Modification Outstanding Recorded Investment	22,709	29,436
Commercial, financial, agricultural [Member]
Restructured loans
Number of Loans (loans)	0	0
Pre-Modification Outstanding Recorded Investment	0	0
Post-Modification Outstanding Recorded Investment	0	0
Lease financing [Member]
Restructured loans
Number of Loans (loans)	0	0
Pre-Modification Outstanding Recorded Investment	0	0
Post-Modification Outstanding Recorded Investment	0	0
Real estate - construction [Member]
Restructured loans
Number of Loans (loans)	0	0
Pre-Modification Outstanding Recorded Investment	0	0
Post-Modification Outstanding Recorded Investment	0	0
Real estate - 1-4 family mortgage [Member]
Restructured loans
Number of Loans (loans)	20	19
Pre-Modification Outstanding Recorded Investment	18,353	18,450
Post-Modification Outstanding Recorded Investment	9,929	10,853
Real estate - commercial mortgage [Member]
Restructured loans
Number of Loans (loans)	15	16
Pre-Modification Outstanding Recorded Investment	13,646	18,985
Post-Modification Outstanding Recorded Investment	12,608	18,409
Installment loans to individuals [Member]
Restructured loans
Number of Loans (loans)	1	1
Pre-Modification Outstanding Recorded Investment	184	184
Post-Modification Outstanding Recorded Investment	$ 172	$ 174