Loans and the Allowance for Loan Losses (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014 Loan	Dec. 31, 2013 Loan
Restructured loans
Number of Loans (loans)	38	41
Pre- Modification Outstanding Recorded Investment	$ 31,827	$ 32,358
Post- Modification Outstanding Recorded Investment	19,802	21,478
Commercial, financial, agricultural
Restructured loans
Number of Loans (loans)	0	1
Pre- Modification Outstanding Recorded Investment	0	20
Post- Modification Outstanding Recorded Investment	0	19
Lease financing
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
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
Restructured loans
Number of Loans (loans)	22	23
Pre- Modification Outstanding Recorded Investment	19,042	19,371
Post- Modification Outstanding Recorded Investment	9,061	10,354
Real estate – commercial mortgage
Restructured loans
Number of Loans (loans)	16	16
Pre- Modification Outstanding Recorded Investment	12,785	12,785
Post- Modification Outstanding Recorded Investment	10,741	10,934
Installment loans to individuals
Restructured loans
Number of Loans (loans)	0	1
Pre- Modification Outstanding Recorded Investment	0	182
Post- Modification Outstanding Recorded Investment	$ 0	$ 171