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Loans and Allowance for Loan Losses (Details 3) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Summary of loan portfolio aging analysis
Total Past Due	$ 1,771	$ 5,045
Current	780,131	766,239
Total Loans Receivable	781,902	771,284
30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	808	3,030
60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	214	904
Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due	749	1,111
Commercial & industrial [Member]
Summary of loan portfolio aging analysis
Total Past Due	458	781
Current	135,122	126,260
Total Loans Receivable	135,580	127,041
Commercial & industrial [Member] | 30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due		120
Commercial & industrial [Member] | 60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due
Commercial & industrial [Member] | Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due	458	661
Commercial real estate - owner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due
Current	95,348	95,651
Total Loans Receivable	95,348	95,651
Commercial real estate - owner occupied [Member] | 30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due
Commercial real estate - owner occupied [Member] | 60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due
Commercial real estate - owner occupied [Member] | Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due
Commercial real estate - nonowner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due	424	343
Current	246,699	243,345
Total Loans Receivable	247,123	243,689
Commercial real estate - nonowner occupied [Member] | 30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	424	343
Commercial real estate - nonowner occupied [Member] | 60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due
Commercial real estate - nonowner occupied [Member] | Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due
Agricultural [Member]
Summary of loan portfolio aging analysis
Total Past Due
Current	50,620	52,012
Total Loans Receivable	50,620	52,012
Agricultural [Member] | 30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due
Agricultural [Member] | 60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due
Agricultural [Member] | Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due
Residential real estate [Member]
Summary of loan portfolio aging analysis
Total Past Due	600	3,670
Current	191,057	187,612
Total Loans Receivable	191,657	191,282
Residential real estate [Member] | 30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	283	2,400
Residential real estate [Member] | 60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	103	886
Residential real estate [Member] | Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due	214	384
HELOC [Member]
Summary of loan portfolio aging analysis
Total Past Due	262	234
Current	47,040	47,148
Total Loans Receivable	47,302	47,381
HELOC [Member] | 30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	87	163
HELOC [Member] | 60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	105	16
HELOC [Member] | Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due	70	55
Consumer [Member]
Summary of loan portfolio aging analysis
Total Past Due	27	17
Current	14,245	14,211
Total Loans Receivable	14,272	14,228
Consumer [Member] | 30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	14	5
Consumer [Member] | 60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	6	1
Consumer [Member] | Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due	$ 7	$ 11

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