Loans, Net Loans identified as impaired by class of loan (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 30, 2014	Dec. 31, 2013
Recorded Investment [Abstract]
With no related allowance recorded	$ 5,977	$ 12,427
With an allowance recorded	8,761	12,269
Total	14,738	24,696
Unpaid Principal Balance [Abstract]
With no related allowance recorded	6,106	13,500
With an allowance recorded	8,813	12,238
Total	14,919	25,738
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	2,454	4,655
Total	2,454	4,655
Average Recorded Investment [Abstract]
With no related allowance recorded	6,170	13,209
With an allowance recorded	9,165	12,788
Total	15,335	25,997
Interest Income Recognized [Abstract]
With no related allowance recorded	148	123
With an allowance recorded	217	128
Total	365	251
Real Estate Loans Construction [Member]
Recorded Investment [Abstract]
With no related allowance recorded	140	1,924
With an allowance recorded	119	712
Unpaid Principal Balance [Abstract]
With no related allowance recorded	140	2,475
With an allowance recorded	119	712
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	69	486
Average Recorded Investment [Abstract]
With no related allowance recorded	172	1,975
With an allowance recorded	125	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	0	0
With an allowance recorded	0	0
Unpaid Principal Balance [Abstract]
With no related allowance recorded	0	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	0	0
With an allowance recorded	0	0
Interest Income Recognized [Abstract]
With no related allowance recorded	0	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	2,061	3,930
With an allowance recorded	3,965	6,481
Unpaid Principal Balance [Abstract]
With no related allowance recorded	2,190	4,452
With an allowance recorded	4,017	6,428
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	1,141	3,045
Average Recorded Investment [Abstract]
With no related allowance recorded	2,169	4,415
With an allowance recorded	3,978	6,632
Interest Income Recognized [Abstract]
With no related allowance recorded	26	6
With an allowance recorded	12	47
Other real estate loans [Member]
Recorded Investment [Abstract]
With no related allowance recorded	3,325	4,458
With an allowance recorded	1,253	4,684
Unpaid Principal Balance [Abstract]
With no related allowance recorded	3,325	4,458
With an allowance recorded	1,253	4,684
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	305	812
Average Recorded Investment [Abstract]
With no related allowance recorded	3,373	4,552
With an allowance recorded	1,266	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	451	2,115
With an allowance recorded	421	355
Unpaid Principal Balance [Abstract]
With no related allowance recorded	451	2,115
With an allowance recorded	421	377
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	309	275
Average Recorded Investment [Abstract]
With no related allowance recorded	456	2,267
With an allowance recorded	794	399
Interest Income Recognized [Abstract]
With no related allowance recorded	18	0
With an allowance recorded	8	10
Consumer loans [Member]
Recorded Investment [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	3,003	37
Unpaid Principal Balance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	3,003	37
Related Allowance [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	630	37
Average Recorded Investment [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	3,002	39
Interest Income Recognized [Abstract]
With no related allowance recorded	0	0
With an allowance recorded	$ 128	$ 0

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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=28368275&loc=d3e5212-111524

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