Loans (Details 8) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule of investment in past due loans
Total Past Due	$ 15,825	$ 16,608
Loans Not Past Due	1,768,300	1,719,232
Loans	1,784,125	1,735,840
Commercial real estate
Schedule of investment in past due loans
Loans	771,523	729,924
Commercial
Schedule of investment in past due loans
Loans	300,438	291,988
Residential real estate
Schedule of investment in past due loans
Loans	499,267	492,133
Consumer
Schedule of investment in past due loans
Loans	212,897	221,795
Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	6,622	6,727
Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	2,454	2,150
Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	6,749	7,731
Residential real estate, 1-4 family residential | Residential real estate
Schedule of investment in past due loans
Loans	389,675	385,806
Residential real estate, Home equity lines of credit | Residential real estate
Schedule of investment in past due loans
Loans	109,592	106,327
Consumer, Indirect | Consumer
Schedule of investment in past due loans
Loans	168,828	169,806
Consumer, Direct | Consumer
Schedule of investment in past due loans
Loans	34,207	39,933
Consumer, Other | Consumer
Schedule of investment in past due loans
Loans	9,862	12,056
Originated Loans
Schedule of investment in past due loans
Total Past Due	10,941	11,361
Loans Not Past Due	1,562,765	1,473,950
Loans	1,573,706	1,485,311
Originated Loans | Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	5,249	5,005
Originated Loans | Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	1,947	1,557
Originated Loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	3,745	4,799
Originated Loans | Commercial real estate, Owner occupied | Commercial real estate
Schedule of investment in past due loans
Total Past Due	242	422
Loans Not Past Due	167,548	158,161
Loans	167,790	158,583
Originated Loans | Commercial real estate, Owner occupied | Financing Receivables, 30 to 59 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	82
Originated Loans | Commercial real estate, Owner occupied | Financing Receivables, 60 to 89 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Originated Loans | Commercial real estate, Owner occupied | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	242	340
Originated Loans | Commercial real estate, Non-owner occupied | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	22
Loans Not Past Due	283,563	255,458
Loans	283,563	255,480
Originated Loans | Commercial real estate, Non-owner occupied | Financing Receivables, 30 to 59 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	22
Originated Loans | Commercial real estate, Non-owner occupied | Financing Receivables, 60 to 89 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Originated Loans | Commercial real estate, Non-owner occupied | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Originated Loans | Commercial real estate, Farmland | Commercial real estate
Schedule of investment in past due loans
Total Past Due	18	214
Loans Not Past Due	133,059	110,547
Loans	133,077	110,761
Originated Loans | Commercial real estate, Farmland | Financing Receivables, 30 to 59 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	184
Originated Loans | Commercial real estate, Farmland | Financing Receivables, 60 to 89 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Originated Loans | Commercial real estate, Farmland | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	18	30
Originated Loans | Commercial real estate, Other | Commercial real estate
Schedule of investment in past due loans
Total Past Due	82	0
Loans Not Past Due	91,873	94,242
Loans	91,955	94,242
Originated Loans | Commercial real estate, Other | Financing Receivables, 30 to 59 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	82	0
Originated Loans | Commercial real estate, Other | Financing Receivables, 60 to 89 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Originated Loans | Commercial real estate, Other | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Originated Loans | Commercial, Commercial and industrial | Commercial
Schedule of investment in past due loans
Total Past Due	660	281
Loans Not Past Due	237,230	226,320
Loans	237,890	226,601
Originated Loans | Commercial, Commercial and industrial | Financing Receivables, 30 to 59 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	148	159
Originated Loans | Commercial, Commercial and industrial | Financing Receivables, 60 to 89 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	57	0
Originated Loans | Commercial, Commercial and industrial | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	455	122
Originated Loans | Commercial, Agricultural | Commercial
Schedule of investment in past due loans
Total Past Due	224	237
Loans Not Past Due	42,740	37,484
Loans	42,964	37,721
Originated Loans | Commercial, Agricultural | Financing Receivables, 30 to 59 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	200	69
Originated Loans | Commercial, Agricultural | Financing Receivables, 60 to 89 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	0	10
Originated Loans | Commercial, Agricultural | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	24	158
Originated Loans | Residential real estate, 1-4 family residential | Residential real estate
Schedule of investment in past due loans
Total Past Due	4,915	4,891
Loans Not Past Due	316,362	302,131
Loans	321,277	307,022
Originated Loans | Residential real estate, 1-4 family residential | Financing Receivables, 30 to 59 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	2,371	1,964
Originated Loans | Residential real estate, 1-4 family residential | Financing Receivables, 60 to 89 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	1,136	424
Originated Loans | Residential real estate, 1-4 family residential | Financing Receivables, Equal to Greater than 90 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	1,408	2,503
Originated Loans | Residential real estate, Home equity lines of credit | Residential real estate
Schedule of investment in past due loans
Total Past Due	1,027	753
Loans Not Past Due	88,112	81,957
Loans	89,139	82,710
Originated Loans | Residential real estate, Home equity lines of credit | Financing Receivables, 30 to 59 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	265	64
Originated Loans | Residential real estate, Home equity lines of credit | Financing Receivables, 60 to 89 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	38	14
Originated Loans | Residential real estate, Home equity lines of credit | Financing Receivables, Equal to Greater than 90 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	724	675
Originated Loans | Consumer, Indirect | Consumer
Schedule of investment in past due loans
Total Past Due	2,610	3,184
Loans Not Past Due	166,218	166,622
Loans	168,828	169,806
Originated Loans | Consumer, Indirect | Financing Receivables, 30 to 59 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	1,521	1,714
Originated Loans | Consumer, Indirect | Financing Receivables, 60 to 89 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	402	755
Originated Loans | Consumer, Indirect | Financing Receivables, Equal to Greater than 90 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	687	715
Originated Loans | Consumer, Direct | Consumer
Schedule of investment in past due loans
Total Past Due	1,118	1,308
Loans Not Past Due	26,344	29,183
Loans	27,462	30,491
Originated Loans | Consumer, Direct | Financing Receivables, 30 to 59 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	636	714
Originated Loans | Consumer, Direct | Financing Receivables, 60 to 89 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	298	340
Originated Loans | Consumer, Direct | Financing Receivables, Equal to Greater than 90 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	184	254
Originated Loans | Consumer, Other | Consumer
Schedule of investment in past due loans
Total Past Due	45	49
Loans Not Past Due	9,716	11,845
Loans	9,761	11,894
Originated Loans | Consumer, Other | Financing Receivables, 30 to 59 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	26	33
Originated Loans | Consumer, Other | Financing Receivables, 60 to 89 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	16	14
Originated Loans | Consumer, Other | Financing Receivables, Equal to Greater than 90 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	3	2
Acquired Loans
Schedule of investment in past due loans
Total Past Due	4,884	5,247
Loans Not Past Due	205,535	245,282
Loans	210,419	250,529
Acquired Loans | Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	1,373	1,722
Acquired Loans | Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	507	593
Acquired Loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	3,004	2,932
Acquired Loans | Commercial real estate, Owner occupied | Commercial real estate
Schedule of investment in past due loans
Total Past Due	65	321
Loans Not Past Due	39,340	44,618
Loans	39,405	44,939
Acquired Loans | Commercial real estate, Owner occupied | Financing Receivables, 30 to 59 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	23	321
Acquired Loans | Commercial real estate, Owner occupied | Financing Receivables, 60 to 89 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	42	0
Acquired Loans | Commercial real estate, Owner occupied | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Commercial real estate, Non-owner occupied | Commercial real estate
Schedule of investment in past due loans
Total Past Due	85	82
Loans Not Past Due	11,576	16,764
Loans	11,661	16,846
Acquired Loans | Commercial real estate, Non-owner occupied | Financing Receivables, 30 to 59 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Commercial real estate, Non-owner occupied | Financing Receivables, 60 to 89 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Commercial real estate, Non-owner occupied | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	85	82
Acquired Loans | Commercial real estate, Farmland | Commercial real estate
Schedule of investment in past due loans
Total Past Due	832	359
Loans Not Past Due	36,320	40,623
Loans	37,152	40,982
Acquired Loans | Commercial real estate, Farmland | Financing Receivables, 30 to 59 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Commercial real estate, Farmland | Financing Receivables, 60 to 89 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	69	102
Acquired Loans | Commercial real estate, Farmland | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	763	257
Acquired Loans | Commercial real estate, Other | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Loans Not Past Due	6,920	8,091
Loans	6,920	8,091
Acquired Loans | Commercial real estate, Other | Financing Receivables, 30 to 59 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Commercial real estate, Other | Financing Receivables, 60 to 89 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Commercial real estate, Other | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Commercial, Commercial and industrial | Commercial
Schedule of investment in past due loans
Total Past Due	737	918
Loans Not Past Due	12,616	17,223
Loans	13,353	18,141
Acquired Loans | Commercial, Commercial and industrial | Financing Receivables, 30 to 59 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	24	94
Acquired Loans | Commercial, Commercial and industrial | Financing Receivables, 60 to 89 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Commercial, Commercial and industrial | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	713	824
Acquired Loans | Commercial, Agricultural | Commercial
Schedule of investment in past due loans
Total Past Due	19	327
Loans Not Past Due	6,212	9,198
Loans	6,231	9,525
Acquired Loans | Commercial, Agricultural | Financing Receivables, 30 to 59 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	9	31
Acquired Loans | Commercial, Agricultural | Financing Receivables, 60 to 89 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	0	5
Acquired Loans | Commercial, Agricultural | Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial
Schedule of investment in past due loans
Total Past Due	10	291
Acquired Loans | Residential real estate, 1-4 family residential | Residential real estate
Schedule of investment in past due loans
Total Past Due	2,289	2,102
Loans Not Past Due	66,109	76,682
Loans	68,398	78,784
Acquired Loans | Residential real estate, 1-4 family residential | Financing Receivables, 30 to 59 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	1,014	750
Acquired Loans | Residential real estate, 1-4 family residential | Financing Receivables, 60 to 89 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	277	229
Acquired Loans | Residential real estate, 1-4 family residential | Financing Receivables, Equal to Greater than 90 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	998	1,123
Acquired Loans | Residential real estate, Home equity lines of credit | Residential real estate
Schedule of investment in past due loans
Total Past Due	397	425
Loans Not Past Due	20,056	23,192
Loans	20,453	23,617
Acquired Loans | Residential real estate, Home equity lines of credit | Financing Receivables, 30 to 59 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	145	208
Acquired Loans | Residential real estate, Home equity lines of credit | Financing Receivables, 60 to 89 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Residential real estate, Home equity lines of credit | Financing Receivables, Equal to Greater than 90 Days Past Due | Residential real estate
Schedule of investment in past due loans
Total Past Due	252	217
Acquired Loans | Consumer, Indirect | Consumer
Schedule of investment in past due loans
Loans	0	0
Acquired Loans | Consumer, Direct | Consumer
Schedule of investment in past due loans
Total Past Due	457	713
Loans Not Past Due	6,288	8,729
Loans	6,745	9,442
Acquired Loans | Consumer, Direct | Financing Receivables, 30 to 59 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	155	318
Acquired Loans | Consumer, Direct | Financing Receivables, 60 to 89 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	119	257
Acquired Loans | Consumer, Direct | Financing Receivables, Equal to Greater than 90 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	183	138
Acquired Loans | Consumer, Other | Consumer
Schedule of investment in past due loans
Total Past Due	3	0
Loans Not Past Due	98	162
Loans	101	162
Acquired Loans | Consumer, Other | Financing Receivables, 30 to 59 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	3	0
Acquired Loans | Consumer, Other | Financing Receivables, 60 to 89 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	0	0
Acquired Loans | Consumer, Other | Financing Receivables, Equal to Greater than 90 Days Past Due | Consumer
Schedule of investment in past due loans
Total Past Due	$ 0	$ 0