Allowance for Loan Losses, by class of loan (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			$ 11,806,000	$ 12,737,000
Charge-Offs			(3,933,000)	(4,669,000)
Recoveries			607,000	683,000
Provision	500,000	1,500,000	1,308,000	4,200,000
Ending Balance	9,788,000	12,951,000	9,788,000	12,951,000
Loan balance for reviewing high risk loans minimum	250,000		250,000
Impaired loans below the $250,000 review threshold	4,410,000	3,340,000	4,410,000	3,340,000
Substandard [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Substandard loans, not classified as impaired	12,700,000	5,300,000	12,700,000	5,300,000
Specific allocation associated with Substandard loans	1,100,000	295,000	1,100,000	295,000
Commercial [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			1,017,000	981,000
Charge-Offs			(453,000)	(105,000)
Recoveries			69,000	51,000
Provision			29,000	95,000
Ending Balance	662,000	1,022,000	662,000	1,022,000
Agricultural [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			294,000	296,000
Charge-Offs			0	(27,000)
Recoveries			2,000	4,000
Provision			8,000	24,000
Ending Balance	304,000	297,000	304,000	297,000
Commercial Construction [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			1,782,000	1,890,000
Charge-Offs			(1,541,000)	(1,779,000)
Recoveries			302,000	193,000
Provision			499,000	1,601,000
Ending Balance	1,042,000	1,905,000	1,042,000	1,905,000
Residential Construction [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			138,000	138,000
Charge-Offs			0	0
Recoveries			0	0
Provision			0	0
Ending Balance	138,000	138,000	138,000	138,000
Commercial Real Estate [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			4,379,000	5,163,000
Charge-Offs			(761,000)	(1,865,000)
Recoveries			109,000	293,000
Provision			522,000	1,677,000
Ending Balance	4,249,000	5,268,000	4,249,000	5,268,000
Residential Real Estate [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			3,278,000	3,406,000
Charge-Offs			(670,000)	(535,000)
Recoveries			27,000	28,000
Provision			150,000	481,000
Ending Balance	2,785,000	3,380,000	2,785,000	3,380,000
Farmland [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			312,000	291,000
Charge-Offs			(234,000)	(21,000)
Recoveries			20,000	22,000
Provision			6,000	19,000
Ending Balance	104,000	311,000	104,000	311,000
Consumer [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			243,000	228,000
Charge-Offs			(274,000)	(333,000)
Recoveries			64,000	82,000
Provision			93,000	300,000
Ending Balance	126,000	277,000	126,000	277,000
Other [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			363,000	344,000
Charge-Offs			0	(4,000)
Recoveries			14,000	10,000
Provision			1,000	3,000
Ending Balance	$ 378,000	$ 353,000	$ 378,000	$ 353,000