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Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Loans:
Individually evaluated for impairment	$ 12		$ 1,760
Collectively evaluated for impairment	891,495		887,873
Total loans	891,507		889,633
Allowance for loan losses:
Specific reserve allocation	0		909
General reserve allocation	9,521		9,305
Total allowance for loan losses	9,521	$ 9,932	10,214	$ 10,391	$ 10,080	$ 9,932
Commercial [Member]
Loans:
Individually evaluated for impairment	0		1,213
Collectively evaluated for impairment	259,535		247,914
Total loans	259,535		249,127
Allowance for loan losses:
Specific reserve allocation	0		909
General reserve allocation	3,566		3,389
Total allowance for loan losses	3,566	3,984	4,298	3,824	4,024	4,041
Commercial loans secured by Non-Owner Occupied real estate [Member]
Loans:
Individually evaluated for impairment	12		547
Collectively evaluated for impairment	370,842		373,298
Total loans	370,854		373,845
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	3,686		3,666
Total allowance for loan losses	3,686	3,550	3,666	4,488	3,746	3,584
Real estate-mortgage [Member]
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	243,467		247,278
Total loans	243,467		247,278
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	1,253		1,102
Total allowance for loan losses	1,253	1,267	1,102	1,150	1,168	1,169
Consumer [Member]
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	17,651		19,383
Total loans	17,651		19,383
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	125		128
Total allowance for loan losses	125	142	128	139	149	151
Allocation for general risk [Member]
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	891		1,020
Total allowance for loan losses	$ 891	$ 989	$ 1,020	$ 790	$ 993	$ 987

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A valuation allowance for financing receivables that are expected to be uncollectible.

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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.

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