Loans (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 736,820	$ 747,050	$ 706,513
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	52,906	55,684
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	7,856	6,211	8,848
Commercial Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	52,094	53,808	56,420
Residential Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	7,570	5,852	3,224
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	328,852	334,386	300,389
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	204,658	203,845
Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	48,208	49,057	48,008
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	28,379	29,778
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 6,297	$ 8,429