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Loans and Allowance for Loan Losses (Details 3) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Summary of loan portfolio aging analysis
Total Past Due	$ 5,620	$ 5,045
Current	808,241	766,239
Total Loans Receivable	813,861	771,284
Commercial & industrial [Member]
Summary of loan portfolio aging analysis
Total Past Due	1,205	781
Current	141,945	126,260
Total Loans Receivable	143,150	127,041
Commercial real estate - owner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due
Current	93,290	95,651
Total Loans Receivable	93,290	95,651
Commercial real estate - nonowner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due	2,823	343
Current	262,970	244,797
Total Loans Receivable	265,793	245,140
Agricultural [Member]
Summary of loan portfolio aging analysis
Total Past Due
Current	54,317	52,012
Total Loans Receivable	54,317	52,012
Residential real estate [Member]
Summary of loan portfolio aging analysis
Total Past Due	1,241	3,587
Current	193,646	183,517
Total Loans Receivable	194,887	187,104
HELOC [Member]
Summary of loan portfolio aging analysis
Total Past Due	318	234
Current	47,470	47,148
Total Loans Receivable	47,788	47,382
Consumer [Member]
Summary of loan portfolio aging analysis
Total Past Due	33	100
Current	14,603	16,854
Total Loans Receivable	14,636	16,954
30 to 59 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	4,096	3,030
30 to 59 Days Past Due [Member] | Commercial & industrial [Member]
Summary of loan portfolio aging analysis
Total Past Due	1,053	120
30 to 59 Days Past Due [Member] | Commercial real estate - owner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due
30 to 59 Days Past Due [Member] | Commercial real estate - nonowner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due	2,802	342
30 to 59 Days Past Due [Member] | Agricultural [Member]
Summary of loan portfolio aging analysis
Total Past Due
30 to 59 Days Past Due [Member] | Residential real estate [Member]
Summary of loan portfolio aging analysis
Total Past Due	147	2,391
30 to 59 Days Past Due [Member] | HELOC [Member]
Summary of loan portfolio aging analysis
Total Past Due	74	163
30 to 59 Days Past Due [Member] | Consumer [Member]
Summary of loan portfolio aging analysis
Total Past Due	20	14
60 to 89 Days Past Due [Member]
Summary of loan portfolio aging analysis
Total Past Due	687	904
60 to 89 Days Past Due [Member] | Commercial & industrial [Member]
Summary of loan portfolio aging analysis
Total Past Due
60 to 89 Days Past Due [Member] | Commercial real estate - owner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due
60 to 89 Days Past Due [Member] | Commercial real estate - nonowner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due	21	1
60 to 89 Days Past Due [Member] | Agricultural [Member]
Summary of loan portfolio aging analysis
Total Past Due
60 to 89 Days Past Due [Member] | Residential real estate [Member]
Summary of loan portfolio aging analysis
Total Past Due	525	824
60 to 89 Days Past Due [Member] | HELOC [Member]
Summary of loan portfolio aging analysis
Total Past Due	134	16
60 to 89 Days Past Due [Member] | Consumer [Member]
Summary of loan portfolio aging analysis
Total Past Due	7	63
Greater Than 90 Days [Member]
Summary of loan portfolio aging analysis
Total Past Due	837	1,111
Greater Than 90 Days [Member] | Commercial & industrial [Member]
Summary of loan portfolio aging analysis
Total Past Due	152	661
Greater Than 90 Days [Member] | Commercial real estate - owner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due
Greater Than 90 Days [Member] | Commercial real estate - nonowner occupied [Member]
Summary of loan portfolio aging analysis
Total Past Due
Greater Than 90 Days [Member] | Agricultural [Member]
Summary of loan portfolio aging analysis
Total Past Due
Greater Than 90 Days [Member] | Residential real estate [Member]
Summary of loan portfolio aging analysis
Total Past Due	569	372
Greater Than 90 Days [Member] | HELOC [Member]
Summary of loan portfolio aging analysis
Total Past Due	110	55
Greater Than 90 Days [Member] | Consumer [Member]
Summary of loan portfolio aging analysis
Total Past Due	$ 6	$ 23

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