Allowance For Loan Losses - Allowance For Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	$ 16,723	$ 16,282	$ 16,408
Charge-Offs	(826)	(625)	(1,196)
Recoveries	502	1,702	1,705
Provision (benefit)	1,754	(636)	(635)
Balance, end of period	18,153	16,723	16,282
Individually evaluated for impairment	344	75	11
Collectively evaluated for impairment	17,809	16,648	16,271
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	5,643	5,779	6,308
Charge-Offs	(616)	(319)	(1,018)
Recoveries	379	1,041	1,049
Provision (benefit)	500	(858)	(560)
Balance, end of period	5,906	5,643	5,779
Individually evaluated for impairment	344	75	0
Collectively evaluated for impairment	5,562	5,568	5,779
Real Estate Construction One-To- Four Family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	644	557	1,029
Charge-Offs	0	0	0
Recoveries	0	625	77
Provision (benefit)	210	(538)	(549)
Balance, end of period	854	644	557
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	854	644	557
Real Estate Construction Other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	1,653	539	326
Charge-Offs	0	0	0
Recoveries	0	0	79
Provision (benefit)	(214)	1,114	134
Balance, end of period	1,439	1,653	539
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	1,439	1,653	539
Real Estate Term Owner Occupied
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	1,580	1,583	1,441
Charge-Offs	0	(160)	0
Recoveries	0	0	0
Provision (benefit)	77	157	142
Balance, end of period	1,657	1,580	1,583
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	1,657	1,580	1,583
Real Estate Term Non-Owner Occupied
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	4,704	4,297	4,065
Charge-Offs	0	0	0
Recoveries	0	0	488
Provision (benefit)	811	407	(256)
Balance, end of period	5,515	4,704	4,297
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	5,515	4,704	4,297
Real Estate Term Other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	656	537	539
Charge-Offs	(81)	0	0
Recoveries	107	0	0
Provision (benefit)	(54)	119	(2)
Balance, end of period	628	656	537
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	628	656	537
Consumer Secured By 1st Deed Of Trust
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	285	322	344
Charge-Offs	(28)	(59)	(14)
Recoveries	3	4	0
Provision (benefit)	4	18	(8)
Balance, end of period	264	285	322
Individually evaluated for impairment	0	0	11
Collectively evaluated for impairment	264	285	311
Consumer Other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	410	390	388
Charge-Offs	(101)	(87)	(164)
Recoveries	13	32	12
Provision (benefit)	75	75	154
Balance, end of period	397	410	390
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	397	410	390
Unallocated
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of period	1,148	2,278	1,968
Charge-Offs	0	0	0
Recoveries	0	0	0
Provision (benefit)	345	(1,130)	310
Balance, end of period	1,493	1,148	2,278
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	$ 1,493	$ 1,148	$ 2,278