Loans, Credit Quality Indicator (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 738,194,000	$ 751,218,000	$ 736,820,000
Loan balance for reviewing high risk loans minimum	250,000
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	43,979,000	48,107,000	52,906,000
Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	12,654,000	10,666,000	7,856,000
Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	54,608,000	52,739,000	52,094,000
Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	9,779,000	6,549,000	7,570,000
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	337,835,000	341,783,000	328,852,000
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	202,159,000	206,258,000	204,658,000
Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	47,886,000	47,035,000	48,208,000
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	23,693,000	25,676,000	28,379,000
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	5,601,000	12,405,000	6,297,000
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	670,384,000	683,692,000
Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	37,721,000	41,759,000
Pass [Member] | Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	12,475,000	10,638,000
Pass [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	44,861,000	42,669,000
Pass [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	9,679,000	6,341,000
Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	312,175,000	317,567,000
Pass [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	179,656,000	182,977,000
Pass [Member] | Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	45,644,000	44,777,000
Pass [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	22,810,000	24,609,000
Pass [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	5,363,000	12,355,000
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	27,913,000	29,619,000
Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,705,000	2,770,000
Special Mention [Member] | Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	13,000	17,000
Special Mention [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,523,000	1,512,000
Special Mention [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	100,000	208,000
Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	9,154,000	10,760,000
Special Mention [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	13,630,000	13,524,000
Special Mention [Member] | Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	528,000	507,000
Special Mention [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	260,000	320,000
Special Mention [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	1,000
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	39,897,000	37,907,000
Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	3,553,000	3,578,000
Substandard [Member] | Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	166,000	11,000
Substandard [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	8,224,000	8,558,000
Substandard [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	0	0
Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	16,506,000	13,456,000
Substandard [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	8,873,000	9,757,000
Substandard [Member] | Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,714,000	1,751,000
Substandard [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	623,000	747,000
Substandard [Member] | Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 238,000	$ 49,000