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Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Loans:
Individually evaluated for impairment	$ 11		$ 1,760
Collectively evaluated for impairment	883,322		887,873
Total loans	883,333		889,633
Allowance for loan losses:
Specific reserve allocation	0		909
General reserve allocation	9,439		9,305
Total allowance for loan losses	9,439	$ 9,521	10,214	$ 10,346	$ 10,391	$ 9,932
Commercial [Member]
Loans:
Individually evaluated for impairment	0		1,213
Collectively evaluated for impairment	261,116		247,914
Total loans	261,116		249,127
Allowance for loan losses:
Specific reserve allocation	0		909
General reserve allocation	3,758		3,389
Total allowance for loan losses	3,758	3,566	4,298	4,167	3,824	4,041
Commercial loans secured by Non-Owner Occupied real estate [Member]
Loans:
Individually evaluated for impairment	11		547
Collectively evaluated for impairment	363,521		373,298
Total loans	363,532		373,845
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	3,388		3,666
Total allowance for loan losses	3,388	3,686	3,666	3,846	4,488	3,584
Real estate-mortgage [Member]
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	240,591		247,278
Total loans	240,591		247,278
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	1,239		1,102
Total allowance for loan losses	1,239	1,253	1,102	1,164	1,150	1,169
Consumer [Member]
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	18,094		19,383
Total loans	18,094		19,383
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	128		128
Total allowance for loan losses	128	125	128	139	139	151
Allocation for general risk [Member]
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	926		1,020
Total allowance for loan losses	$ 926	$ 891	$ 1,020	$ 1,030	$ 790	$ 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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