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Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Loans:
Individually evaluated for impairment	$ 926	$ 1,759
Collectively evaluated for impairment	873,947	887,874
Total loans	874,873	889,633
Allowance for loan losses:
Specific reserve allocation	835	909
General reserve allocation	9,097	9,305
Total allowance for loan losses	9,932	10,214	$ 10,080	$ 9,932
Commercial [Member]
Loans:
Individually evaluated for impairment	913	1,212
Collectively evaluated for impairment	157,863	157,980
Total loans	158,776	159,192
Allowance for loan losses:
Specific reserve allocation	835	909
General reserve allocation	3,149	3,390
Total allowance for loan losses	3,984	4,299	4,024	4,041
Commercial loans secured by real estate [Member]
Loans:
Individually evaluated for impairment	13	547
Collectively evaluated for impairment	451,774	463,233
Total loans	451,787	463,780
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	3,550	3,666
Total allowance for loan losses	3,550	3,666	3,747	3,584
Real estate-mortgage [Member]
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	244,322	247,278
Total loans	244,322	247,278
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	1,267	1,102
Total allowance for loan losses	1,267	1,102	1,167	1,169
Consumer [Member]
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	19,988	19,383
Total loans	19,988	19,383
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	142	128
Total allowance for loan losses	142	128	149	151
Allocation for general risk [Member]
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	989	1,019
Total allowance for loan losses	$ 989	$ 1,019	$ 993	$ 987

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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-Publisher FASB
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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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