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Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Schedule of loan balances
Total loans	$ 1,539,333		$ 1,416,783
Allowance for loan losses	(12,104)	$ (11,746)	(10,852)	$ (10,518)	$ (9,720)	$ (8,978)
Commercial real estate
Schedule of loan balances
Allowance for loan losses	(4,219)	(3,954)	(3,577)	(3,341)	(3,210)	(3,127)
Commercial
Schedule of loan balances
Allowance for loan losses	(2,015)	(1,936)	(1,874)	(1,822)	(1,634)	(1,373)
Residential real estate
Schedule of loan balances
Allowance for loan losses	(2,333)	(2,310)	(2,205)	(2,147)	(2,081)	(1,845)
Consumer
Schedule of loan balances
Allowance for loan losses	(2,907)	$ (2,927)	(2,766)	$ (2,601)	$ (2,444)	$ (2,160)
Originated Loans
Schedule of loan balances
Total loans	1,213,500		1,051,103
Originated Loans | Commercial real estate, Owner occupied | Commercial real estate
Schedule of loan balances
Loan balances	137,557		109,750
Originated Loans | Commercial real estate, Non-owner occupied | Commercial real estate
Schedule of loan balances
Loan balances	191,592		165,861
Originated Loans | Commercial real estate, Farmland | Commercial real estate
Schedule of loan balances
Loan balances	58,342		34,155
Originated Loans | Commercial real estate, Other | Commercial real estate
Schedule of loan balances
Loan balances	80,767		70,823
Originated Loans | Commercial, Commercial and industrial | Commercial
Schedule of loan balances
Loan balances	187,576		171,145
Originated Loans | Residential real estate, 1-4 family residential | Residential real estate
Schedule of loan balances
Loan balances	259,568		224,222
Originated Loans | Commercial, Agricultural | Commercial
Schedule of loan balances
Loan balances	32,006		24,598
Originated Loans | Residential real estate, Home equity lines of credit | Residential real estate
Schedule of loan balances
Loan balances	68,513		59,642
Originated Loans | Consumer, Indirect | Consumer
Schedule of loan balances
Loan balances	160,804		156,633
Originated Loans | Consumer, Direct | Consumer
Schedule of loan balances
Loan balances	28,314		26,663
Originated Loans | Consumer, Other | Consumer
Schedule of loan balances
Loan balances	8,461		7,611
Acquired Loans
Schedule of loan balances
Total loans	334,829		373,134
Net Deferred loan costs	3,108		3,398
Allowance for loan losses	(12,104)		(10,852)
Acquired Loans | Commercial real estate, Owner occupied | Commercial real estate
Schedule of loan balances
Loan balances	54,073		60,928
Acquired Loans | Commercial real estate, Non-owner occupied | Commercial real estate
Schedule of loan balances
Loan balances	23,152		24,949
Acquired Loans | Commercial real estate, Farmland | Commercial real estate
Schedule of loan balances
Loan balances	51,231		54,204
Acquired Loans | Commercial real estate, Other | Commercial real estate
Schedule of loan balances
Loan balances	13,285		14,665
Acquired Loans | Commercial, Commercial and industrial | Commercial
Schedule of loan balances
Loan balances	31,370		33,626
Acquired Loans | Residential real estate, 1-4 family residential | Residential real estate
Schedule of loan balances
Loan balances	101,284		112,015
Acquired Loans | Commercial, Agricultural | Commercial
Schedule of loan balances
Loan balances	13,757		16,024
Acquired Loans | Residential real estate, Home equity lines of credit | Residential real estate
Schedule of loan balances
Loan balances	30,338		34,795
Acquired Loans | Consumer, Direct | Consumer
Schedule of loan balances
Loan balances	16,226		21,681
Acquired Loans | Consumer, Other | Consumer
Schedule of loan balances
Loan balances	$ 113		$ 247

X

- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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