Loans (Details 4) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	$ 777,154	$ 689,608
Days Past Due
30-59	61	695
60-89	35	151
90+ and Still Accruing		15
Non-Accruing	12,672	17,309
Accruing TDR	2,883	17
Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	725,931	614,272
Credit Risk Grades, Special Mention
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	5,925	24,206
Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	44,312	51,130
Credit Risk Grades, Doubtful
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	986
Real Estate Secured
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	603,081	493,008
Real Estate Secured | Multi-family residential
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	25,782	21,467
Real Estate Secured | Multi-family residential | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	25,198	20,869
Real Estate Secured | Multi-family residential | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	584	598
Real Estate Secured | Residential 1 to 4 family
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	57,016	41,444
Days Past Due
30-59		199
Non-Accruing	452	835
Accruing TDR	361
Real Estate Secured | Residential 1 to 4 family | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	56,080	40,234
Real Estate Secured | Residential 1 to 4 family | Credit Risk Grades, Special Mention
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	4	6
Real Estate Secured | Residential 1 to 4 family | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	932	1,204
Real Estate Secured | Home equity lines of credit
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	32,388	31,863
Days Past Due
60-89		47
Non-Accruing		58
Real Estate Secured | Home equity lines of credit | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	32,230	30,808
Real Estate Secured | Home equity lines of credit | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	158	1,055
Real Estate Secured | Commercial
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	442,322	372,592
Days Past Due
Non-Accruing	964	928
Accruing TDR	226
Real Estate Secured | Commercial | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	414,892	332,968
Real Estate Secured | Commercial | Credit Risk Grades, Special Mention
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	3,710	14,235
Real Estate Secured | Commercial | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	23,720	25,389
Real Estate Secured | Farmland
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	45,573	25,642
Days Past Due
Non-Accruing		1,077
Real Estate Secured | Farmland | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	44,388	20,492
Real Estate Secured | Farmland | Credit Risk Grades, Special Mention
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	980	3,260
Real Estate Secured | Farmland | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	205	1,890
Commercial
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	132,107	147,064
Commercial | Commercial and industrial
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	103,540	125,340
Days Past Due
30-59	61	446
60-89	35	104
90+ and Still Accruing		15
Non-Accruing	3,224	4,657
Accruing TDR	1,430	17
Commercial | Commercial and industrial | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	93,743	114,126
Commercial | Commercial and industrial | Credit Risk Grades, Special Mention
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	820	2,245
Commercial | Commercial and industrial | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	7,991	8,969
Commercial | Commercial and industrial | Credit Risk Grades, Doubtful
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	986
Commercial | Agriculture
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	28,523	21,663
Days Past Due
Non-Accruing	811	907
Commercial | Agriculture | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	26,947	19,771
Commercial | Agriculture | Credit Risk Grades, Special Mention
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	280	106
Commercial | Agriculture | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	1,296	1,786
Commercial | Other
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	44	61
Commercial | Other | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	44	61
Construction
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	13,174	19,716
Construction | Single family residential
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	4,619	8,074
Construction | Single family residential | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	4,619	8,074
Construction | Single family residential - Spec.
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	1,114	535
Construction | Single family residential - Spec. | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	1,114	535
Construction | Multi-family
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	747	778
Construction | Multi-family | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	747	778
Construction | Commercial
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	6,694	10,329
Days Past Due
Non-Accruing		1,380
Construction | Commercial | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	6,694	8,469
Construction | Commercial | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans		1,860
Land
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	25,042	24,664
Days Past Due
30-59		50
Non-Accruing	7,194	7,182
Accruing TDR	866
Land | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	15,583	12,461
Land | Credit Risk Grades, Special Mention
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	131	4,124
Land | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	9,328	8,079
Installment loans to individuals
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	3,495	4,895
Days Past Due
Non-Accruing	27	285
Installment loans to individuals | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	3,397	4,365
Installment loans to individuals | Credit Risk Grades, Special Mention
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans		230
Installment loans to individuals | Credit Risk Grades, Substandard
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	98	300
All other loans (including overdrafts)
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	255	261
All other loans (including overdrafts) | Credit Risk Grades, Pass
Loan portfolio by internal risk grading system as well as certain other information concerning the credit quality
Total Gross loans	$ 255	$ 261