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Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Loans:
Individually evaluated for impairment	$ 3,923		$ 674
Collectively evaluated for impairment	892,287		883,090
Total loans	896,210		883,764
Allowance for loan losses:
Specific reserve allocation	888		527
General reserve allocation	9,458		9,405
Total allowance for loan losses	10,346	$ 10,391	9,932	$ 9,726	$ 9,746	$ 9,921
Commercial [Member]
Loans:
Individually evaluated for impairment	1,458		496
Collectively evaluated for impairment	159,460		171,033
Total loans	160,918		171,529
Allowance for loan losses:
Specific reserve allocation	860		496
General reserve allocation	3,307		3,545
Total allowance for loan losses	4,167	3,825	4,041	4,234	4,322	4,244
Commercial loans secured by real estate [Member]
Loans:
Individually evaluated for impairment	2,465		178
Collectively evaluated for impairment	466,883		446,420
Total loans	469,348		446,598
Allowance for loan losses:
Specific reserve allocation	28		31
General reserve allocation	3,818		3,553
Total allowance for loan losses	3,846	4,487	3,584	3,348	3,274	3,449
Real estate-mortgage [Member]
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	246,881		245,765
Total loans	246,881		245,765
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	1,164		1,169
Total allowance for loan losses	1,164	1,151	1,169	1,072	1,075	1,173
Consumer [Member]
Loans:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	19,063		19,872
Total loans	19,063		19,872
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	139		151
Total allowance for loan losses	139	138	151	139	135	151
Allocation for general risk [Member]
Loans:
Individually evaluated for impairment
Collectively evaluated for impairment
Total loans
Allowance for loan losses:
Specific reserve allocation	0		0
General reserve allocation	1,030		987
Total allowance for loan losses	$ 1,030	$ 790	$ 987	$ 933	$ 940	$ 904

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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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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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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