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Loan Credit Quality Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	$ 419,974	$ 411,630
Financing Receivable, Recorded Investment, Special Mention	3,319	6,683
Financing Receivable Recorded Investment, Substandard Accruing	5,843	5,892
Financing Receivable, Recorded Investment, Nonaccrual Status	2,370	2,714
Total Loans	431,506	426,919
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	49,558	48,038
Financing Receivable, Recorded Investment, Special Mention	22	4,075
Financing Receivable Recorded Investment, Substandard Accruing	233	323
Financing Receivable, Recorded Investment, Nonaccrual Status	37	43
Total Loans	49,850	52,479
Construction And Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	41,165	42,458
Financing Receivable, Recorded Investment, Special Mention	113	60
Financing Receivable Recorded Investment, Substandard Accruing	340	593
Financing Receivable, Recorded Investment, Nonaccrual Status	32	583
Total Loans	41,650	43,694
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	48,788	45,772
Financing Receivable, Recorded Investment, Special Mention	414	381
Financing Receivable Recorded Investment, Substandard Accruing	405	219
Financing Receivable, Recorded Investment, Nonaccrual Status	138	230
Total Loans	49,745	46,602
Commercial Real Estate Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	46,998	45,264
Financing Receivable, Recorded Investment, Special Mention	0	0
Financing Receivable Recorded Investment, Substandard Accruing	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Total Loans	46,998	45,264
Commercial Real Estate Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	121,326	110,159
Financing Receivable, Recorded Investment, Special Mention	32	36
Financing Receivable Recorded Investment, Substandard Accruing	449	272
Financing Receivable, Recorded Investment, Nonaccrual Status	1,889	1,520
Total Loans	123,696	111,987
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	217,112	201,195
Financing Receivable, Recorded Investment, Special Mention	446	417
Financing Receivable Recorded Investment, Substandard Accruing	854	491
Financing Receivable, Recorded Investment, Nonaccrual Status	2,027	1,750
Total Loans	220,439	203,853
Residential Real Estate Consumer Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	59,450	64,502
Financing Receivable, Recorded Investment, Special Mention	2,613	1,964
Financing Receivable Recorded Investment, Substandard Accruing	3,278	3,218
Financing Receivable, Recorded Investment, Nonaccrual Status	223	325
Total Loans	65,564	70,009
Residential Real Estate Investment Property Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	44,109	45,399
Financing Receivable, Recorded Investment, Special Mention	105	112
Financing Receivable Recorded Investment, Substandard Accruing	1,048	1,153
Financing Receivable, Recorded Investment, Nonaccrual Status	29	0
Total Loans	45,291	46,664
Residential Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	103,559	109,901
Financing Receivable, Recorded Investment, Special Mention	2,718	2,076
Financing Receivable Recorded Investment, Substandard Accruing	4,326	4,371
Financing Receivable, Recorded Investment, Nonaccrual Status	252	325
Total Loans	110,855	116,673
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	8,580	10,038
Financing Receivable, Recorded Investment, Special Mention	20	55
Financing Receivable Recorded Investment, Substandard Accruing	90	114
Financing Receivable, Recorded Investment, Nonaccrual Status	22	13
Total Loans	$ 8,712	$ 10,220

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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