Credit Risk Profile by Internally Assigned Grade Other Credit Exposure (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Leases credit risk
Pass.	$ 1,297
Pass.	1,297
Doubtful or loss.	0
Total Credit Risk Profile by Internally Assigned Grade Other Credit Exposure	1,297
Pass,		1,344
Doubtful or loss,		0
Total Credit Risk Profile by Internally Assigned Grade Other Credit Exposure.		1,344
Agriculture credit risk
Pass.	2,698
Pass.	2,698
Special mention.	389
Total Credit Risk Profile by Internally Assigned Grade Other Credit Exposure	3,087
Pass,		2,728
Special mention,		392
Total Credit Risk Profile by Internally Assigned Grade Other Credit Exposure.		3,120
Consumer credit risk
Pass.	5,186
Pass.	5,186
Watch.	37
Special mention.	89
Substandard.	149
Total Credit Risk Profile by Internally Assigned Grade Other Credit Exposure	5,461
Pass,		5,486
Watch,		21
Special mention,		111
Substandard,		154
Total Credit Risk Profile by Internally Assigned Grade Other Credit Exposure.		5,772
Total credit risk
Pass.	208,928
Pass.	208,928
Watch.	21,828
Special mention.	22,054
Substandard.	8,348
Total Credit Risk Profile by Internally Assigned Grade Other Credit Exposure	261,158
Pass,		205,274
Watch,		21,100
Special mention,		22,533
Substandard,		8,499
Total Credit Risk Profile by Internally Assigned Grade Other Credit Exposure.		$ 257,406