Loans (Details 7) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	$ 6,078	$ 6,765
Loans Past Due 90 Days or More Still Accruing	671	966
Originated Loans
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	3,388	4,012
Loans Past Due 90 Days or More Still Accruing	357	787
Originated Loans | Commercial real estate, Owner occupied | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	242	340
Loans Past Due 90 Days or More Still Accruing	0	0
Originated Loans | Commercial real estate, Farmland | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	18	30
Loans Past Due 90 Days or More Still Accruing	0	0
Originated Loans | Commercial, Commercial and industrial | Commercial
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	455	122
Loans Past Due 90 Days or More Still Accruing	0	0
Originated Loans | Commercial, Agricultural | Commercial
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	24	158
Loans Past Due 90 Days or More Still Accruing	0	0
Originated Loans | Residential real estate, 1-4 family residential | Residential real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	1,294	2,318
Loans Past Due 90 Days or More Still Accruing	114	185
Originated Loans | Residential real estate, Home equity lines of credit | Residential real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	687	644
Loans Past Due 90 Days or More Still Accruing	37	31
Originated Loans | Consumer, Indirect | Consumer
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	557	346
Loans Past Due 90 Days or More Still Accruing	130	369
Originated Loans | Consumer, Direct | Consumer
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	111	54
Loans Past Due 90 Days or More Still Accruing	73	200
Originated Loans | Consumer, Other | Consumer
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	0	0
Loans Past Due 90 Days or More Still Accruing	3	2
Acquired Loans
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	2,690	2,753
Loans Past Due 90 Days or More Still Accruing	314	179
Acquired Loans | Commercial real estate, Non-owner occupied | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	85	82
Loans Past Due 90 Days or More Still Accruing	0	0
Acquired Loans | Commercial real estate, Farmland | Commercial real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	763	257
Loans Past Due 90 Days or More Still Accruing	0	0
Acquired Loans | Commercial, Commercial and industrial | Commercial
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	713	824
Loans Past Due 90 Days or More Still Accruing	0	0
Acquired Loans | Commercial, Agricultural | Commercial
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	10	291
Loans Past Due 90 Days or More Still Accruing	0	0
Acquired Loans | Residential real estate, 1-4 family residential | Residential real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	707	1,001
Loans Past Due 90 Days or More Still Accruing	291	122
Acquired Loans | Residential real estate, Home equity lines of credit | Residential real estate
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	250	203
Loans Past Due 90 Days or More Still Accruing	2	14
Acquired Loans | Consumer, Direct | Consumer
Schedule of investment in nonaccrual and loans past due over 90 days still on accrual by class of loans
Nonaccrual	162	95
Loans Past Due 90 Days or More Still Accruing	$ 21	$ 43