Loans Past Due Analysis (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	$ 371,779	$ 376,959
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	2,729	2,485
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	131	73
Financing Receivable, Recorded Investment, Total Still Accruing	374,639	379,517
Financing Receivable, Recorded Investment, Nonaccrual Status	3,188	4,261
Loans and Leases Receivable, Gross, Carrying Amount	377,827	383,778	390,837
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	54,270	57,558
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	191	167
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	117	0
Financing Receivable, Recorded Investment, Total Still Accruing	54,578	57,725
Financing Receivable, Recorded Investment, Nonaccrual Status	54	55
Loans and Leases Receivable, Gross, Carrying Amount	54,632	57,780	55,736
Construction And Land Development Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	29,747	34,883
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	157	14
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	29,904	34,897
Financing Receivable, Recorded Investment, Nonaccrual Status	1,371	1,582
Loans and Leases Receivable, Gross, Carrying Amount	31,275	36,479	41,104
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	53,417	54,214
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	275	861
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	53,692	55,075
Financing Receivable, Recorded Investment, Nonaccrual Status	281	1,027
Loans and Leases Receivable, Gross, Carrying Amount	53,973	56,102
Commercial Real Estate Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	124,133	118,389
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	186	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	124,319	118,389
Financing Receivable, Recorded Investment, Nonaccrual Status	429	429
Loans and Leases Receivable, Gross, Carrying Amount	124,748	118,818
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	177,550	172,603
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	461	861
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	178,011	173,464
Financing Receivable, Recorded Investment, Nonaccrual Status	710	1,456
Loans and Leases Receivable, Gross, Carrying Amount	178,721	174,920	178,993
Residential Real Estate Consumer Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	56,358	56,191
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	1,340	745
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	69
Financing Receivable, Recorded Investment, Total Still Accruing	57,698	57,005
Financing Receivable, Recorded Investment, Nonaccrual Status	751	866
Loans and Leases Receivable, Gross, Carrying Amount	58,449	57,871
Residential Real Estate Investment Property Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	42,195	42,935
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	494	598
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	42,689	43,533
Financing Receivable, Recorded Investment, Nonaccrual Status	295	302
Loans and Leases Receivable, Gross, Carrying Amount	42,984	43,835
Residential Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	98,553	99,126
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	1,834	1,343
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	69
Financing Receivable, Recorded Investment, Total Still Accruing	100,387	100,538
Financing Receivable, Recorded Investment, Nonaccrual Status	1,046	1,168
Loans and Leases Receivable, Gross, Carrying Amount	101,433	101,706	102,978
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	11,659	12,789
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	86	100
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	14	4
Financing Receivable, Recorded Investment, Total Still Accruing	11,759	12,893
Financing Receivable, Recorded Investment, Nonaccrual Status	7	0
Loans and Leases Receivable, Gross, Carrying Amount	$ 11,766	$ 12,893	$ 12,026