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Loans (Details 10) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable Recorded Investment [Line Items]
Loans	$ 1,427,635	$ 1,296,865
Residential real estate
Financing Receivable Recorded Investment [Line Items]
Loans	430,195	394,582
Residential real estate | Residential real estate, 1-4 family residential
Financing Receivable Recorded Investment [Line Items]
Loans	335,718	312,563
Residential real estate | Residential real estate, Home equity lines of credit
Financing Receivable Recorded Investment [Line Items]
Loans	94,477	82,019
Consumer
Financing Receivable Recorded Investment [Line Items]
Loans	218,100	185,077
Consumer | Consumer, Indirect
Financing Receivable Recorded Investment [Line Items]
Loans	161,713	131,427
Consumer | Consumer, Direct
Financing Receivable Recorded Investment [Line Items]
Loans	48,528	48,938
Consumer | Consumer, Other
Financing Receivable Recorded Investment [Line Items]
Loans	7,859	4,712
Originated Loans
Financing Receivable Recorded Investment [Line Items]
Loans	1,054,496	833,691
Originated Loans | Residential real estate | Residential real estate, 1-4 family residential
Financing Receivable Recorded Investment [Line Items]
Loans	223,700	178,993
Originated Loans | Residential real estate | Residential real estate, 1-4 family residential | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	221,476	176,251
Originated Loans | Residential real estate | Residential real estate, 1-4 family residential | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	2,224	2,742
Originated Loans | Residential real estate | Residential real estate, Home equity lines of credit
Financing Receivable Recorded Investment [Line Items]
Loans	59,682	41,223
Originated Loans | Residential real estate | Residential real estate, Home equity lines of credit | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	59,362	40,984
Originated Loans | Residential real estate | Residential real estate, Home equity lines of credit | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	320	239
Originated Loans | Consumer | Consumer, Indirect
Financing Receivable Recorded Investment [Line Items]
Loans	161,713	131,427
Originated Loans | Consumer | Consumer, Indirect | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	160,977	130,864
Originated Loans | Consumer | Consumer, Indirect | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	736	563
Originated Loans | Consumer | Consumer, Direct
Financing Receivable Recorded Investment [Line Items]
Loans	26,846	17,473
Originated Loans | Consumer | Consumer, Direct | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	26,772	17,440
Originated Loans | Consumer | Consumer, Direct | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	74	33
Originated Loans | Consumer | Consumer, Other
Financing Receivable Recorded Investment [Line Items]
Loans	7,612	4,508
Originated Loans | Consumer | Consumer, Other | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	7,596	4,484
Originated Loans | Consumer | Consumer, Other | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	16	24
Acquired Loans
Financing Receivable Recorded Investment [Line Items]
Loans	373,139	463,174
Acquired Loans | Residential real estate | Residential real estate, 1-4 family residential
Financing Receivable Recorded Investment [Line Items]
Loans	112,018	133,570
Acquired Loans | Residential real estate | Residential real estate, 1-4 family residential | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	111,087	132,645
Acquired Loans | Residential real estate | Residential real estate, 1-4 family residential | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	931	925
Acquired Loans | Residential real estate | Residential real estate, Home equity lines of credit
Financing Receivable Recorded Investment [Line Items]
Loans	34,795	40,796
Acquired Loans | Residential real estate | Residential real estate, Home equity lines of credit | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	34,567	40,664
Acquired Loans | Residential real estate | Residential real estate, Home equity lines of credit | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	228	132
Acquired Loans | Consumer | Consumer, Indirect
Financing Receivable Recorded Investment [Line Items]
Loans	0	0
Acquired Loans | Consumer | Consumer, Indirect | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	0	0
Acquired Loans | Consumer | Consumer, Indirect | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	0	0
Acquired Loans | Consumer | Consumer, Direct
Financing Receivable Recorded Investment [Line Items]
Loans	21,682	31,465
Acquired Loans | Consumer | Consumer, Direct | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	21,498	31,254
Acquired Loans | Consumer | Consumer, Direct | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	184	211
Acquired Loans | Consumer | Consumer, Other
Financing Receivable Recorded Investment [Line Items]
Loans	247	204
Acquired Loans | Consumer | Consumer, Other | Performing Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	247	204
Acquired Loans | Consumer | Consumer, Other | Nonperforming Financing Receivable
Financing Receivable Recorded Investment [Line Items]
Loans	$ 0	$ 0

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5074-111524

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