Loans - Impaired Loans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	$ 10,492	$ 8,565
Impaired Loan, No Related Allowance, Unpaid Principal Balance	10,549	8,989
Impaired Loan, Related Allowance, Recorded Investment	806	186
Impaired Loan, Related Allowance, Unpaid Principal Balance	806	186
Related Allowance	75	11
Recorded Investment	11,298	8,751
Unpaid Principal Balance	11,355	9,175
Impaired Loan, No Related Allowance, Average Recorded Investment	9,956	10,050
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	756	461
Impaired Loan, Related Allowance, Average Recorded Investment	577	835
Impaired Loan, Related Allowance, Interest Income, Accrual Method	6	0
Impaired Loan, Average Recorded Investment	10,533	10,885
Impaired Loan, Interest Income, Accrual Method	762	461
Commercial | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment		181
Impaired Loan, No Related Allowance, Unpaid Principal Balance		181
Related Allowance		0
Recorded Investment		181
Unpaid Principal Balance		181
Impaired Loan, No Related Allowance, Average Recorded Investment	97	138
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	2	13
Impaired Loan, Average Recorded Investment	97	138
Impaired Loan, Interest Income, Accrual Method	2	13
Commercial | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	170	314
Impaired Loan, No Related Allowance, Unpaid Principal Balance	170	314
Related Allowance	0	0
Recorded Investment	170	314
Unpaid Principal Balance	170	314
Impaired Loan, No Related Allowance, Average Recorded Investment	254	366
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	23	36
Impaired Loan, Related Allowance, Average Recorded Investment	46	0
Impaired Loan, Related Allowance, Interest Income, Accrual Method	6	0
Impaired Loan, Average Recorded Investment	300	366
Impaired Loan, Interest Income, Accrual Method	29	36
Commercial | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	3,000	343
Impaired Loan, No Related Allowance, Unpaid Principal Balance	3,045	488
Impaired Loan, Related Allowance, Recorded Investment	806
Impaired Loan, Related Allowance, Unpaid Principal Balance	806
Related Allowance	75	0
Recorded Investment	3,806	343
Unpaid Principal Balance	3,851	488
Impaired Loan, No Related Allowance, Average Recorded Investment	1,912	710
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	94	28
Impaired Loan, Related Allowance, Average Recorded Investment	356	109
Impaired Loan, Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Average Recorded Investment	2,268	819
Impaired Loan, Interest Income, Accrual Method	94	28
Commercial | Asset Quality Rating - Doubtful
Financing Receivable, Impaired [Line Items]
Impaired Loan, Related Allowance, Average Recorded Investment	0	64
Impaired Loan, Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Average Recorded Investment	0	64
Impaired Loan, Interest Income, Accrual Method	0	0
Commercial | Asset Quality Rating - Loss
Financing Receivable, Impaired [Line Items]
Impaired Loan, Related Allowance, Average Recorded Investment	0	46
Impaired Loan, Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Average Recorded Investment	0	46
Impaired Loan, Interest Income, Accrual Method	0	0
Real Estate Construction One-To- Four Family | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Average Recorded Investment	0	118
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Average Recorded Investment	0	118
Impaired Loan, Interest Income, Accrual Method	0	0
Real Estate Construction One-To- Four Family | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment		353
Impaired Loan, No Related Allowance, Unpaid Principal Balance		353
Related Allowance		0
Recorded Investment		353
Unpaid Principal Balance		353
Impaired Loan, No Related Allowance, Average Recorded Investment	175	411
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	11	6
Impaired Loan, Average Recorded Investment	175	411
Impaired Loan, Interest Income, Accrual Method	11	6
Real Estate Construction One-To- Four Family | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	191
Impaired Loan, No Related Allowance, Unpaid Principal Balance	191
Related Allowance	0
Recorded Investment	191
Unpaid Principal Balance	191
Impaired Loan, No Related Allowance, Average Recorded Investment	117	0
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Related Allowance, Average Recorded Investment	0	382
Impaired Loan, Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Average Recorded Investment	117	382
Impaired Loan, Interest Income, Accrual Method	0	0
Real Estate Construction Other | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	772	1,686
Impaired Loan, No Related Allowance, Unpaid Principal Balance	772	1,686
Related Allowance	0	0
Recorded Investment	772	1,686
Unpaid Principal Balance	772	1,686
Impaired Loan, No Related Allowance, Average Recorded Investment	196	2,238
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	30	0
Impaired Loan, Average Recorded Investment	196	2,238
Impaired Loan, Interest Income, Accrual Method	30	0
Real Estate Construction Other | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment		834
Impaired Loan, No Related Allowance, Unpaid Principal Balance		834
Related Allowance		0
Recorded Investment		834
Unpaid Principal Balance		834
Impaired Loan, No Related Allowance, Average Recorded Investment	605	413
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	101	58
Impaired Loan, Average Recorded Investment	605	413
Impaired Loan, Interest Income, Accrual Method	101	58
Real Estate Term Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	501	512
Impaired Loan, No Related Allowance, Unpaid Principal Balance	501	512
Related Allowance	0	0
Recorded Investment	501	512
Unpaid Principal Balance	501	512
Impaired Loan, No Related Allowance, Average Recorded Investment	507	389
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	50	35
Impaired Loan, Average Recorded Investment	507	389
Impaired Loan, Interest Income, Accrual Method	50	35
Real Estate Term Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	273	484
Impaired Loan, No Related Allowance, Unpaid Principal Balance	273	484
Related Allowance	0	0
Recorded Investment	273	484
Unpaid Principal Balance	273	484
Impaired Loan, No Related Allowance, Average Recorded Investment	299	859
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	20	66
Impaired Loan, Average Recorded Investment	299	859
Impaired Loan, Interest Income, Accrual Method	20	66
Real Estate Term Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	558	672
Impaired Loan, No Related Allowance, Unpaid Principal Balance	558	672
Related Allowance	0	0
Recorded Investment	558	672
Unpaid Principal Balance	558	672
Impaired Loan, No Related Allowance, Average Recorded Investment	1,018	337
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	60	18
Impaired Loan, Average Recorded Investment	1,018	337
Impaired Loan, Interest Income, Accrual Method	60	18
Real Estate Term Owner Occupied | Asset Quality Rating - Loss
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Average Recorded Investment	0	100
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	0	5
Impaired Loan, Average Recorded Investment	0	100
Impaired Loan, Interest Income, Accrual Method	0	5
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	549
Impaired Loan, No Related Allowance, Unpaid Principal Balance	549
Related Allowance	0
Recorded Investment	549
Unpaid Principal Balance	549
Impaired Loan, No Related Allowance, Average Recorded Investment	595	90
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	94	6
Impaired Loan, Average Recorded Investment	595	90
Impaired Loan, Interest Income, Accrual Method	94	6
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	2,088	786
Impaired Loan, No Related Allowance, Unpaid Principal Balance	2,088	786
Related Allowance	0	0
Recorded Investment	2,088	786
Unpaid Principal Balance	2,088	786
Impaired Loan, No Related Allowance, Average Recorded Investment	2,360	842
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	253	83
Impaired Loan, Average Recorded Investment	2,360	842
Impaired Loan, Interest Income, Accrual Method	253	83
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	1,709	955
Impaired Loan, No Related Allowance, Unpaid Principal Balance	1,709	955
Related Allowance	0	0
Recorded Investment	1,709	955
Unpaid Principal Balance	1,709	955
Impaired Loan, No Related Allowance, Average Recorded Investment	1,229	1,340
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	0	78
Impaired Loan, Average Recorded Investment	1,229	1,340
Impaired Loan, Interest Income, Accrual Method	0	78
Real Estate Term Other | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	150	1,292
Impaired Loan, No Related Allowance, Unpaid Principal Balance	150	1,571
Related Allowance	0	0
Recorded Investment	150	1,292
Unpaid Principal Balance	150	1,571
Impaired Loan, No Related Allowance, Average Recorded Investment	152	1,440
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	14	20
Impaired Loan, Average Recorded Investment	152	1,440
Impaired Loan, Interest Income, Accrual Method	14	20
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	82	88
Impaired Loan, No Related Allowance, Unpaid Principal Balance	82	88
Related Allowance	0	0
Recorded Investment	82	88
Unpaid Principal Balance	82	88
Impaired Loan, No Related Allowance, Average Recorded Investment	85	90
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	4	5
Impaired Loan, Average Recorded Investment	85	90
Impaired Loan, Interest Income, Accrual Method	4	5
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment	449
Impaired Loan, No Related Allowance, Unpaid Principal Balance	461
Related Allowance	0
Recorded Investment	449
Unpaid Principal Balance	461
Impaired Loan, No Related Allowance, Average Recorded Investment	0	21
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	0	1
Impaired Loan, Average Recorded Investment	0	21
Impaired Loan, Interest Income, Accrual Method	0	1
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Related Allowance		11
Recorded Investment		186
Unpaid Principal Balance		186
Impaired Loan, No Related Allowance, Average Recorded Investment	326	0
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Related Allowance, Average Recorded Investment	175	194
Impaired Loan, Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Average Recorded Investment	501	194
Impaired Loan, Interest Income, Accrual Method	0	0
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Doubtful
Financing Receivable, Impaired [Line Items]
Impaired Loan, Related Allowance, Recorded Investment		186
Impaired Loan, Related Allowance, Unpaid Principal Balance		186
Related Allowance		11
Consumer Other | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Related Allowance		0
Recorded Investment		65
Unpaid Principal Balance		65
Impaired Loan, No Related Allowance, Average Recorded Investment	29	148
Impaired Loan, No Related Allowance, Interest Income, Accrual Method	0	3
Impaired Loan, Related Allowance, Average Recorded Investment	0	40
Impaired Loan, Related Allowance, Interest Income, Accrual Method	0	0
Impaired Loan, Average Recorded Investment	29	188
Impaired Loan, Interest Income, Accrual Method	0	3
Consumer Other | Asset Quality Rating - Doubtful
Financing Receivable, Impaired [Line Items]
Impaired Loan, No Related Allowance, Recorded Investment		65
Impaired Loan, No Related Allowance, Unpaid Principal Balance		$ 65