Loans, Net Loans identified as impaired by class of loan (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Recorded Investment [Abstract]
With no related allowance recorded	$ 13,690	$ 12,427
With an allowance recorded	8,468	12,269
Total	22,158	24,696
Unpaid Principal Balance [Abstract]
With no related allowance recorded	13,818	13,500
With an allowance recorded	9,370	12,238
Total	23,188	25,738
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	2,669	4,655
Total	2,669	4,655
Average Recorded Investment [Abstract]
With no related allowance recorded	13,879	13,209
With an allowance recorded	8,892	12,788
Total	22,771	25,997
Interest Income Recognized [Abstract]
With no related allowance recorded	592	123
With an allowance recorded	89	128
Total	681	251
Real Estate Loans Construction [Member]
Recorded Investment [Abstract]
With no related allowance recorded	131	1,924
With an allowance recorded	115	712
Unpaid Principal Balance [Abstract]
With no related allowance recorded	131	2,475
With an allowance recorded	115	712
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	66	486
Average Recorded Investment [Abstract]
With no related allowance recorded	138	1,975
With an allowance recorded	124	878
Interest Income Recognized [Abstract]
With no related allowance recorded	0	13
With an allowance recorded	0	0
Real Estate Loans Secured by Farmland [Member]
Recorded Investment [Abstract]
With no related allowance recorded	7,903	0
With an allowance recorded	0	0
Unpaid Principal Balance [Abstract]
With no related allowance recorded	7,903	0
With an allowance recorded	0	0
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	0	0
Average Recorded Investment [Abstract]
With no related allowance recorded	7,903	0
With an allowance recorded	0	0
Interest Income Recognized [Abstract]
With no related allowance recorded	454	0
With an allowance recorded	0	0
Real Estate Loans Secured by 1 - 4 Family Residential [Member]
Recorded Investment [Abstract]
With no related allowance recorded	1,919	3,930
With an allowance recorded	3,694	6,481
Unpaid Principal Balance [Abstract]
With no related allowance recorded	2,047	4,452
With an allowance recorded	3,746	6,428
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	1,370	3,045
Average Recorded Investment [Abstract]
With no related allowance recorded	2,032	4,415
With an allowance recorded	3,704	6,632
Interest Income Recognized [Abstract]
With no related allowance recorded	16	6
With an allowance recorded	11	47
Other Real Estate Loans [Member]
Recorded Investment [Abstract]
With no related allowance recorded	3,289	4,458
With an allowance recorded	1,242	4,684
Unpaid Principal Balance [Abstract]
With no related allowance recorded	3,289	4,458
With an allowance recorded	1,242	4,684
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	294	812
Average Recorded Investment [Abstract]
With no related allowance recorded	3,352	4,552
With an allowance recorded	1,260	4,840
Interest Income Recognized [Abstract]
With no related allowance recorded	104	104
With an allowance recorded	69	71
Commercial Loans [Member]
Recorded Investment [Abstract]
With no related allowance recorded	448	2,115
With an allowance recorded	398	355
Unpaid Principal Balance [Abstract]
With no related allowance recorded	448	2,115
With an allowance recorded	1,248	377
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	292	275
Average Recorded Investment [Abstract]
With no related allowance recorded	454	2,267
With an allowance recorded	783	399
Interest Income Recognized [Abstract]
With no related allowance recorded	18	0
With an allowance recorded	7	10
Consumer Loans [Member]
Recorded Investment [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	3,019	37
Unpaid Principal Balance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	3,019	37
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	647	37
Average Recorded Investment [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	3,021	39
Interest Income Recognized [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	$ 2	$ 0

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524

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