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Loan Credit Quality Analysis (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	$ 416,909	$ 411,630
Financing Receivable, Recorded Investment, Special Mention	7,171	6,683
Financing Receivable Recorded Investment, Substandard Accruing	5,500	5,892
Financing Receivable, Recorded Investment, Nonaccrual Status	1,669	2,714
Loans and Leases Receivable, Gross, Carrying Amount	431,249	426,919	$ 408,959
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	46,015	48,038
Financing Receivable, Recorded Investment, Special Mention	3,850	4,075
Financing Receivable Recorded Investment, Substandard Accruing	285	323
Financing Receivable, Recorded Investment, Nonaccrual Status	40	43
Loans and Leases Receivable, Gross, Carrying Amount	50,190	52,479	57,310
Construction And Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	48,873	42,458
Financing Receivable, Recorded Investment, Special Mention	53	60
Financing Receivable Recorded Investment, Substandard Accruing	365	593
Financing Receivable, Recorded Investment, Nonaccrual Status	55	583
Loans and Leases Receivable, Gross, Carrying Amount	49,346	43,694	38,854
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	46,874	45,772
Financing Receivable, Recorded Investment, Special Mention	275	381
Financing Receivable Recorded Investment, Substandard Accruing	451	219
Financing Receivable, Recorded Investment, Nonaccrual Status	0	230
Loans and Leases Receivable, Gross, Carrying Amount	47,600	46,602
Commercial Real Estate Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	43,279	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
Loans and Leases Receivable, Gross, Carrying Amount	43,279	45,264
Commercial Real Estate Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	115,568	110,159
Financing Receivable, Recorded Investment, Special Mention	354	36
Financing Receivable Recorded Investment, Substandard Accruing	460	272
Financing Receivable, Recorded Investment, Nonaccrual Status	1,564	1,520
Loans and Leases Receivable, Gross, Carrying Amount	117,946	111,987
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	205,721	201,195
Financing Receivable, Recorded Investment, Special Mention	629	417
Financing Receivable Recorded Investment, Substandard Accruing	911	491
Financing Receivable, Recorded Investment, Nonaccrual Status	1,564	1,750
Loans and Leases Receivable, Gross, Carrying Amount	208,825	203,853	184,124
Residential Real Estate Consumer Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	62,702	64,502
Financing Receivable, Recorded Investment, Special Mention	2,501	1,964
Financing Receivable Recorded Investment, Substandard Accruing	2,864	3,218
Financing Receivable, Recorded Investment, Nonaccrual Status	10	325
Loans and Leases Receivable, Gross, Carrying Amount	68,077	70,009
Residential Real Estate Investment Property Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	44,588	45,399
Financing Receivable, Recorded Investment, Special Mention	107	112
Financing Receivable Recorded Investment, Substandard Accruing	991	1,153
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	45,686	46,664
Residential Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	107,290	109,901
Financing Receivable, Recorded Investment, Special Mention	2,608	2,076
Financing Receivable Recorded Investment, Substandard Accruing	3,855	4,371
Financing Receivable, Recorded Investment, Nonaccrual Status	10	325
Loans and Leases Receivable, Gross, Carrying Amount	113,763	116,673	115,039
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	9,010	10,038
Financing Receivable, Recorded Investment, Special Mention	31	55
Financing Receivable Recorded Investment, Substandard Accruing	84	114
Financing Receivable, Recorded Investment, Nonaccrual Status	0	13
Loans and Leases Receivable, Gross, Carrying Amount	$ 9,125	$ 10,220	$ 13,632

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