Credit Quality of Loans and Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Commercial, Financial and Agricultural [Member]	Dec. 31, 2011 Commercial, Financial and Agricultural [Member]	Sep. 30, 2011 Commercial, Financial and Agricultural [Member]	Sep. 30, 2012 Consumer - Other [Member]	Dec. 31, 2011 Consumer - Other [Member]
Troubled Debt Restructuring [Abstract]
Number of Contracts Classified as TDRs			3	4		1	1
Pre-Modification Outstanding Recorded Investment	$ 258	$ 461	$ 244	$ 447		$ 14	$ 14
Post-Modification Outstanding Recorded Investment	242	456	232	444		10	12
Trouble Debt Restructurings that Subsequently Defaulted, Number of Contracts			3		0
Trouble Debt Restructurings that Subsequently Defaulted, Recorded Investment			$ 250		$ 0
Number of loans removed from TDR (Troubled debt restructuring) status after loan was paid off	1