Loans (Details 8) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of investment in past due loans
Total Past Due	$ 14,811	$ 20,916
Loans Not Past Due	1,446,650	1,406,719
Loans	1,461,461	1,427,635
Commercial real estate
Schedule of investment in past due loans
Loans	548,272	534,285
Commercial
Schedule of investment in past due loans
Loans	250,012	245,055
Residential real estate
Schedule of investment in past due loans
Loans	441,096	430,195
Consumer
Schedule of investment in past due loans
Loans	222,081	218,100
Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	6,317	10,485
Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	1,941	2,261
Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	6,553	8,170
Residential real estate, 1-4 family residential \| Residential real estate
Schedule of investment in past due loans
Loans	344,807	335,718
Residential real estate, Home equity lines of credit \| Residential real estate
Schedule of investment in past due loans
Loans	96,289	94,477
Consumer, Indirect \| Consumer
Schedule of investment in past due loans
Loans	166,829	161,713
Consumer, Direct \| Consumer
Schedule of investment in past due loans
Loans	47,579	48,528
Consumer, Other \| Consumer
Schedule of investment in past due loans
Loans	7,673	7,859
Originated Loans
Schedule of investment in past due loans
Total Past Due	10,537	13,715
Loans Not Past Due	1,095,758	1,040,781
Loans	1,106,295	1,054,496
Originated Loans \| Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	4,776	7,215
Originated Loans \| Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	1,271	1,359
Originated Loans \| Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	4,490	5,141
Originated Loans \| Commercial real estate, Owner occupied \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	982	958
Loans Not Past Due	114,795	108,475
Loans	115,777	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	176	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	806	958
Originated Loans \| Commercial real estate, Non-owner occupied \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	17	343
Loans Not Past Due	165,456	165,105
Loans	165,473	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	17	343
Originated Loans \| Commercial real estate, Farmland \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	55	58
Loans Not Past Due	41,057	34,057
Loans	41,112	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	55	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	77,156	70,542
Loans	77,156	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	492	490
Loans Not Past Due	177,325	170,242
Loans	177,817	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	0	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	143	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	349	400
Originated Loans \| Residential real estate, 1-4 family residential \| Residential real estate
Schedule of investment in past due loans
Total Past Due	4,946	5,948
Loans Not Past Due	232,357	217,752
Loans	237,303	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	2,066	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	556	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	2,324	2,224
Originated Loans \| Commercial, Agricultural \| Commercial
Schedule of investment in past due loans
Total Past Due	41	41
Loans Not Past Due	26,603	24,632
Loans	26,644	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	38	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	3	12
Originated Loans \| Residential real estate, Home equity lines of credit \| Residential real estate
Schedule of investment in past due loans
Total Past Due	428	434
Loans Not Past Due	62,203	59,248
Loans	62,631	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	63	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	84	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	281	320
Originated Loans \| Consumer, Indirect \| Consumer
Schedule of investment in past due loans
Total Past Due	2,839	4,276
Loans Not Past Due	163,990	157,437
Loans	166,829	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	1,850	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	359	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	630	736
Originated Loans \| Consumer, Direct \| Consumer
Schedule of investment in past due loans
Total Past Due	680	1,031
Loans Not Past Due	27,356	25,815
Loans	28,036	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	554	744
Originated Loans \| Consumer, Direct \| Financing Receivables, 60 to 89 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	119	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	7	74
Originated Loans \| Consumer, Other \| Consumer
Schedule of investment in past due loans
Total Past Due	57	136
Loans Not Past Due	7,460	7,476
Loans	7,517	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	29	92
Originated Loans \| Consumer, Other \| Financing Receivables, 60 to 89 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	10	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	18	16
Acquired Loans
Schedule of investment in past due loans
Total Past Due	4,274	7,201
Loans Not Past Due	350,892	365,938
Loans	355,166	373,139
Acquired Loans \| Financing Receivables, 30 to 59 Days Past Due
Schedule of investment in past due loans
Total Past Due	1,541	3,270
Acquired Loans \| Financing Receivables, 60 to 89 Days Past Due
Schedule of investment in past due loans
Total Past Due	670	902
Acquired Loans \| Financing Receivables, Equal to Greater than 90 Days Past Due
Schedule of investment in past due loans
Total Past Due	2,063	3,029
Acquired Loans \| Commercial real estate, Owner occupied \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	59	298
Loans Not Past Due	59,317	60,630
Loans	59,376	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	59	85
Acquired Loans \| Commercial real estate, Non-owner occupied \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	265	134
Loans Not Past Due	23,666	24,815
Loans	23,931	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	65	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	200	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	0	0
Acquired Loans \| Commercial real estate, Farmland \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	93	463
Loans Not Past Due	51,222	53,741
Loans	51,315	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	0	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	93	380
Acquired Loans \| Commercial real estate, Other \| Commercial real estate
Schedule of investment in past due loans
Total Past Due	8	24
Loans Not Past Due	14,124	14,642
Loans	14,132	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	8	24
Acquired Loans \| Commercial, Commercial and industrial \| Commercial
Schedule of investment in past due loans
Total Past Due	959	1,239
Loans Not Past Due	29,760	32,387
Loans	30,719	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	65	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	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	894	961
Acquired Loans \| Residential real estate, 1-4 family residential \| Residential real estate
Schedule of investment in past due loans
Total Past Due	1,489	2,991
Loans Not Past Due	106,015	109,027
Loans	107,504	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	664	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	299	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	526	931
Acquired Loans \| Commercial, Agricultural \| Commercial
Schedule of investment in past due loans
Total Past Due	293	257
Loans Not Past Due	14,539	15,767
Loans	14,832	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	195	21
Acquired Loans \| Commercial, Agricultural \| Financing Receivables, 60 to 89 Days Past Due \| Commercial
Schedule of investment in past due loans
Total Past Due	0	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	98	236
Acquired Loans \| Residential real estate, Home equity lines of credit \| Residential real estate
Schedule of investment in past due loans
Total Past Due	449	389
Loans Not Past Due	33,209	34,406
Loans	33,658	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	126	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	113	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	210	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	659	1,306
Loans Not Past Due	18,884	20,376
Loans	19,543	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	426	938
Acquired Loans \| Consumer, Direct \| Financing Receivables, 60 to 89 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	58	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	175	184
Acquired Loans \| Consumer, Other \| Consumer
Schedule of investment in past due loans
Total Past Due	0	100
Loans Not Past Due	156	147
Loans	156	247
Acquired Loans \| Consumer, Other \| Financing Receivables, 30 to 59 Days Past Due \| Consumer
Schedule of investment in past due loans
Total Past Due	0	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

Mar. 31, 2017

Dec. 31, 2016

Schedule of investment in past due loans

Total Past Due

$ 14,811

$ 20,916

Loans Not Past Due

1,446,650

1,406,719

Loans

1,461,461