Loans - Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 23,801		$ 23,801		$ 10,491
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	23,946		23,946		10,549
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,544		2,544		806
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,544		2,544		806
Related Allowance	265		265		75
Recorded Investment	26,345		26,345		11,297
Unpaid Principal Balance	26,490		26,490		11,355
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	24,202	$ 12,981	17,828	$ 9,143
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	181	159	336	268
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,414	351	2,471	658
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	6
Impaired Financing Receivable, Average Recorded Investment	26,616	13,332	20,299	9,801
Impaired Financing Receivable, Interest Income, Accrual Method	181	159	336	274
Commercial | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	63	0	32
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	1	0	1
Impaired Financing Receivable, Average Recorded Investment	0	63	0	32
Impaired Financing Receivable, Interest Income, Accrual Method	0	1	0	1
Commercial | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	163		163		170
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	163		163		170
Related Allowance	0		0		0
Recorded Investment	163		163		170
Unpaid Principal Balance	163		163		170
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	164	351	166	242
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	3	9	7	10
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment			0	92
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method			0	6
Impaired Financing Receivable, Average Recorded Investment	164	351	166	334
Impaired Financing Receivable, Interest Income, Accrual Method	3	9	7	16
Commercial | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	11,992		11,992		3,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	12,137		12,137		3,045
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,544		2,544
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,544		2,544
Related Allowance	265		265		75
Recorded Investment	14,536		14,536		3,806
Unpaid Principal Balance	14,681		14,681		3,851
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	12,315	2,546	7,703	1,476
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	41	4	70	8
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,414	0	2,330	298
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment	14,729	2,546	10,033	1,774
Impaired Financing Receivable, Interest Income, Accrual Method	41	4	70	8
Real Estate Construction One-To- Four Family | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	731		731
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	731		731
Related Allowance	0		0
Recorded Investment	731		731
Unpaid Principal Balance	731		731
Real Estate Construction One-To- Four Family | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Related Allowance					0
Recorded Investment					191
Unpaid Principal Balance					191
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment			0	176
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method			0	6
Impaired Financing Receivable, Average Recorded Investment			0	176
Impaired Financing Receivable, Interest Income, Accrual Method			0	6
Real Estate Construction One-To- Four Family | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment					191
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance					191
Real Estate Construction Other | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment					772
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance					772
Related Allowance					0
Recorded Investment					772
Unpaid Principal Balance					772
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	743	0	753	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	30	0	59	0
Impaired Financing Receivable, Average Recorded Investment	743	0	753	0
Impaired Financing Receivable, Interest Income, Accrual Method	30	0	59	0
Real Estate Construction Other | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment			0	409
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method			0	29
Impaired Financing Receivable, Average Recorded Investment			0	409
Impaired Financing Receivable, Interest Income, Accrual Method			0	29
Real Estate Term Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	764		764		501
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	764		764		501
Related Allowance	0		0		0
Recorded Investment	764		764		501
Unpaid Principal Balance	764		764		501
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	766	508	634	509
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	17	15	28	27
Impaired Financing Receivable, Average Recorded Investment	766	508	634	509
Impaired Financing Receivable, Interest Income, Accrual Method	17	15	28	27
Real Estate Term Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment					273
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance					273
Related Allowance					0
Recorded Investment					273
Unpaid Principal Balance					273
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	363	135	322
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	4	5	9
Impaired Financing Receivable, Average Recorded Investment	0	363	135	322
Impaired Financing Receivable, Interest Income, Accrual Method	0	4	5	9
Real Estate Term Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	5,238		5,238		558
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	5,238		5,238		558
Related Allowance	0		0		0
Recorded Investment	5,238		5,238		558
Unpaid Principal Balance	5,238		5,238		558
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	5,269	1,414	2,967	1,143
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	19	14	28	27
Impaired Financing Receivable, Average Recorded Investment	5,269	1,414	2,967	1,143
Impaired Financing Receivable, Interest Income, Accrual Method	19	14	28	27
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	540		540		549
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	540		540		549
Related Allowance	0		0		0
Recorded Investment	540		540		549
Unpaid Principal Balance	540		540		549
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	541	614	544	616
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	19	36	38	55
Impaired Financing Receivable, Average Recorded Investment	541	614	544	616
Impaired Financing Receivable, Interest Income, Accrual Method	19	36	38	55
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,070		2,070		2,088
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,070		2,070		2,088
Related Allowance	0		0		0
Recorded Investment	2,070		2,070		2,088
Unpaid Principal Balance	2,070		2,070		2,088
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	2,079	3,234	2,127	2,113
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	44	25	88	40
Impaired Financing Receivable, Average Recorded Investment	2,079	3,234	2,127	2,113
Impaired Financing Receivable, Interest Income, Accrual Method	44	25	88	40
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,636		1,636		1,709
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,636		1,636		1,709
Related Allowance	0		0		0
Recorded Investment	1,636		1,636		1,709
Unpaid Principal Balance	1,636		1,636		1,709
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,652	2,055	2,009	1,033
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment	1,652	2,055	2,009	1,033
Impaired Financing Receivable, Interest Income, Accrual Method	0	0	0	0
Real Estate Term Other | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	1,161	0	584
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	47	0	47
Impaired Financing Receivable, Average Recorded Investment	0	1,161	0	584
Impaired Financing Receivable, Interest Income, Accrual Method	0	47	0	47
Real Estate Term Other | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	149		149		150
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	149		149		150
Related Allowance	0		0		0
Recorded Investment	149		149		150
Unpaid Principal Balance	149		149		150
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	149	153	149	154
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	3	4	7	7
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment			141	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method			0	0
Impaired Financing Receivable, Average Recorded Investment	149	153	290	154
Impaired Financing Receivable, Interest Income, Accrual Method	3	4	7	7
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	79		79		82
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	79		79		82
Related Allowance	0		0		0
Recorded Investment	79		79		82
Unpaid Principal Balance	79		79		82
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	80	85	81	86
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	1	0	2	2
Impaired Financing Receivable, Average Recorded Investment	80	85	81	86
Impaired Financing Receivable, Interest Income, Accrual Method	1	0	2	2
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment					448
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance					461
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	439		439
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	439		439
Impaired Financing Receivable, with Related Allowance, Recorded Investment					806
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance					806
Related Allowance	0		0		75
Recorded Investment	439		439
Unpaid Principal Balance	439		439
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	444	379	560	190
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	4	0	4	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	351	0	268
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment	444	730	560	458
Impaired Financing Receivable, Interest Income, Accrual Method	4	0	4	0
Consumer Other | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Related Allowance					0
Recorded Investment					448
Unpaid Principal Balance					$ 461
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	55	0	58
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment	0	55	0	58
Impaired Financing Receivable, Interest Income, Accrual Method	$ 0	$ 0	$ 0	$ 0