Loans (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Loans
Loans	$ 415,277	$ 428,159
% of Total Loans	100.00%	100.00%
Deferred loan fees, net	(934)	(764)
Total gross loans	414,343	427,395
Allowance for credit losses	(10,140)	(11,396)
Total loans	404,203	415,999
Small Business Administration programs
Loans
Real estate and commercial loans	5,744	6,421
Commercial
Loans
Loans	119,429	108,047
% of Total Loans	28.80%	25.30%
Commercial | Commercial and industrial
Loans
Loans	75,786	78,089
% of Total Loans	18.30%	18.30%
Commercial | Agricultural land and production
Loans
Loans	43,643	29,958
% of Total Loans	10.50%	7.00%
Real Estate Portfolio Segment
Loans
Loans	242,509	259,241
% of Total Loans	58.30%	60.40%
Real Estate Portfolio Segment | Owner occupied
Loans
Loans	109,336	113,183
% of Total Loans	26.10%	26.40%
Real Estate Portfolio Segment | Real estate construction and other land loans
Loans
Loans	32,209	33,047
% of Total Loans	7.80%	7.70%
Real Estate Portfolio Segment | Commercial real estate
Loans
Loans	54,578	62,523
% of Total Loans	13.20%	14.60%
Real Estate Portfolio Segment | Agricultural real estate
Loans
Loans	38,160	42,596
% of Total Loans	9.20%	9.90%
Real Estate Portfolio Segment | Other real estate
Loans
Loans	8,226	7,892
% of Total Loans	2.00%	1.80%
Consumer
Loans
Loans	53,339	60,871
% of Total Loans	12.90%	14.30%
Consumer | Equity loans and lines of credit
Loans
Loans	44,761	51,106
% of Total Loans	10.80%	12.00%
Consumer | Consumer and installment
Loans
Loans	$ 8,578	$ 9,765
% of Total Loans	2.10%	2.30%