Allowance for Loan Losses, by class of loan (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 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			(2,588,000)	(2,825,000)
Recoveries			444,000	345,000
Provision	481,000	1,200,000	808,000	2,700,000
Ending Balance	10,470,000	12,957,000	10,470,000	12,957,000
Loan balance for reviewing high risk loans minimum	250,000		250,000
Impaired loans below the $250,000 review threshold	3,930,000	2,170,000	3,930,000	2,170,000
Substandard [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Substandard loans, not classified as impaired	9,000,000	8,200,000	9,000,000	8,200,000
Specific allocation associated with Substandard loans	630,000	615,000	630,000	615,000
Commercial [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			1,017,000	981,000
Charge-Offs			(373,000)	(45,000)
Recoveries			58,000	38,000
Provision			18,000	43,000
Ending Balance	720,000	1,017,000	720,000	1,017,000
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			1,000	4,000
Provision			5,000	26,000
Ending Balance	300,000	299,000	300,000	299,000
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			(470,000)	(791,000)
Recoveries			254,000	120,000
Provision			308,000	756,000
Ending Balance	1,874,000	1,975,000	1,874,000	1,975,000
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			(753,000)	(1,425,000)
Recoveries			43,000	85,000
Provision			323,000	1,361,000
Ending Balance	3,992,000	5,184,000	3,992,000	5,184,000
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			(585,000)	(279,000)
Recoveries			25,000	18,000
Provision			92,000	267,000
Ending Balance	2,810,000	3,412,000	2,810,000	3,412,000
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			0	16,000
Provision			4,000	20,000
Ending Balance	82,000	306,000	82,000	306,000
Consumer [Member]
Activity in allowance for loan losses, segregated by class of loan [Roll Forward]
Beginning Balance			243,000	228,000
Charge-Offs			(173,000)	(233,000)
Recoveries			51,000	55,000
Provision			57,000	223,000
Ending Balance	178,000	273,000	178,000	273,000
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			12,000	9,000
Provision			1,000	4,000
Ending Balance	$ 376,000	$ 353,000	$ 376,000	$ 353,000