Loans (Details 8) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of investment in past due loans
Total Past Due	$ 15,580	$ 20,916
Loans Not Past Due	1,535,857	1,406,719
Loans	1,551,437	1,427,635
Commercial real estate
Schedule of investment in past due loans
Loans	608,755	534,285
Commercial
Schedule of investment in past due loans
Loans	264,286	245,055
Residential real estate
Schedule of investment in past due loans
Loans	459,177	430,195
Consumer
Schedule of investment in past due loans
Loans	219,219	218,100
Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	6,369	10,485
Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	2,311	2,261
Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	6,900	8,170
Residential real estate, 1-4 family residential \| Residential real estate
Schedule of investment in past due loans
Loans	360,295	335,718
Residential real estate, Home equity lines of credit \| Residential real estate
Schedule of investment in past due loans
Loans	98,883	94,477
Consumer, Indirect \| Consumer
Schedule of investment in past due loans
Loans	165,916	161,713
Consumer, Direct \| Consumer
Schedule of investment in past due loans
Loans	44,729	48,528
Consumer, Other \| Consumer
Schedule of investment in past due loans
Loans	8,574	7,859
Originated Loans
Schedule of investment in past due loans
Total Past Due	11,006	13,715
Loans Not Past Due	1,205,597	1,040,781
Loans	1,216,603	1,054,496
Originated Loans \| Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	4,611	7,215
Originated Loans \| Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	1,817	1,359
Originated Loans \| Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	4,578	5,141
Originated Loans \| Commercial real estate, Owner occupied \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	541	958
Loans Not Past Due	136,633	108,475
Loans	137,174	109,433
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	5	0
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	536	958
Originated Loans \| Commercial real estate, Non-owner occupied \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	15	343
Loans Not Past Due	191,075	165,105
Loans	191,090	165,448
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	0
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	15	343
Originated Loans \| Commercial real estate, Farmland \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	47	58
Loans Not Past Due	58,223	34,057
Loans	58,270	34,115
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	0
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	47	58
Originated Loans \| Commercial real estate, Other \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	0
Loans Not Past Due	80,478	70,542
Loans	80,478	70,542
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	0	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	426	490
Loans Not Past Due	186,633	170,242
Loans	187,059	170,732
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	136	90
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	0	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	290	400
Originated Loans \| Residential real estate, 1-4 family residential \| Residential real estate
Schedule of investment in past due loans
Total Past Due	5,027	5,948
Loans Not Past Due	253,982	217,752
Loans	259,009	223,700
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	1,799	3,368
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	835	356
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	2,393	2,224
Originated Loans \| Commercial, Agricultural \| Commercial
Schedule of investment in past due loans
Total Past Due	97	41
Loans Not Past Due	32,001	24,632
Loans	32,098	24,673
Originated Loans \| Commercial, Agricultural \| Financing Receivables, 30 to 59 Days Past Due \| Commercial
Schedule of investment in past due loans
Total Past Due	95	0
Originated Loans \| Commercial, Agricultural \| Financing Receivables, 60 to 89 Days Past Due \| Commercial
Schedule of investment in past due loans
Total Past Due	0	29
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	2	12
Originated Loans \| Residential real estate, Home equity lines of credit \| Residential real estate
Schedule of investment in past due loans
Total Past Due	641	434
Loans Not Past Due	67,904	59,248
Loans	68,545	59,682
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	3	77
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	18	37
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	620	320
Originated Loans \| Consumer, Indirect \| Consumer
Schedule of investment in past due loans
Total Past Due	3,177	4,276
Loans Not Past Due	162,739	157,437
Loans	165,916	161,713
Originated Loans \| Consumer, Indirect \| Financing Receivables, 30 to 59 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	1,995	2,844
Originated Loans \| Consumer, Indirect \| Financing Receivables, 60 to 89 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	625	696
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	557	736
Originated Loans \| Consumer, Direct \| Consumer
Schedule of investment in past due loans
Total Past Due	987	1,031
Loans Not Past Due	27,516	25,815
Loans	28,503	26,846
Originated Loans \| Consumer, Direct \| Financing Receivables, 30 to 59 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	567	744
Originated Loans \| Consumer, Direct \| Financing Receivables, 60 to 89 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	318	213
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	102	74
Originated Loans \| Consumer, Other \| Consumer
Schedule of investment in past due loans
Total Past Due	48	136
Loans Not Past Due	8,413	7,476
Loans	8,461	7,612
Originated Loans \| Consumer, Other \| Financing Receivables, 30 to 59 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	11	92
Originated Loans \| Consumer, Other \| Financing Receivables, 60 to 89 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	21	28
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	16	16
Acquired Loans
Schedule of investment in past due loans
Total Past Due	4,574	7,201
Loans Not Past Due	330,260	365,938
Loans	334,834	373,139
Acquired Loans \| Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	1,758	3,270
Acquired Loans \| Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	494	902
Acquired Loans \| Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	2,322	3,029
Acquired Loans \| Commercial real estate, Owner occupied \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	8	298
Loans Not Past Due	54,066	60,630
Loans	54,074	60,928
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	0	8
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	0	205
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	8	85
Acquired Loans \| Commercial real estate, Non-owner occupied \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	321	134
Loans Not Past Due	22,805	24,815
Loans	23,126	24,949
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	105	134
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	216	0
Acquired Loans \| Commercial real estate, Farmland \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	197	463
Loans Not Past Due	51,034	53,741
Loans	51,231	54,204
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	83
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	150	0
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	47	380
Acquired Loans \| Commercial real estate, Other \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	0	24
Loans Not Past Due	13,312	14,642
Loans	13,312	14,666
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	24
Acquired Loans \| Commercial, Commercial and industrial \| Commercial
Schedule of investment in past due loans
Total Past Due	1,622	1,239
Loans Not Past Due	29,749	32,387
Loans	31,371	33,626
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	479	278
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	74	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	1,069	961
Acquired Loans \| Residential real estate, 1-4 family residential \| Residential real estate
Schedule of investment in past due loans
Total Past Due	1,491	2,991
Loans Not Past Due	99,795	109,027
Loans	101,286	112,018
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	753	1,556
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	112	504
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	626	931
Acquired Loans \| Commercial, Agricultural \| Commercial
Schedule of investment in past due loans
Total Past Due	64	257
Loans Not Past Due	13,693	15,767
Loans	13,757	16,024
Acquired Loans \| Commercial, Agricultural \| Financing Receivables, 30 to 59 Days Past Due \| Commercial
Schedule of investment in past due loans
Total Past Due	49	21
Acquired Loans \| Commercial, Agricultural \| Financing Receivables, 60 to 89 Days Past Due \| Commercial
Schedule of investment in past due loans
Total Past Due	5	0
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	236
Acquired Loans \| Residential real estate, Home equity lines of credit \| Residential real estate
Schedule of investment in past due loans
Total Past Due	212	389
Loans Not Past Due	30,126	34,406
Loans	30,338	34,795
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	0	152
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	9
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	212	228
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	658	1,306
Loans Not Past Due	15,568	20,376
Loans	16,226	21,682
Acquired Loans \| Consumer, Direct \| Financing Receivables, 30 to 59 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	371	938
Acquired Loans \| Consumer, Direct \| Financing Receivables, 60 to 89 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	153	184
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	134	184
Acquired Loans \| Consumer, Other \| Consumer
Schedule of investment in past due loans
Total Past Due	1	100
Loans Not Past Due	112	147
Loans	113	247
Acquired Loans \| Consumer, Other \| Financing Receivables, 30 to 59 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	1	100
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

Loans (Details 8) - USD ($)
$ in Thousands

Sep. 30, 2017

Dec. 31, 2016

Schedule of investment in past due loans

Total Past Due

$ 15,580

$ 20,916

Loans Not Past Due

1,535,857

1,406,719

Loans

1,551,437