Allowance For Loan Losses - Allowance For Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 19,088	$ 19,519	$ 21,461
Charge-Offs	(1,121)	(217)	(1,926)
Recoveries	737	961	484
Provision (benefit)	2,432	(1,175)	(500)
Balance, end of period	21,136	19,088	19,519
Individually evaluated for impairment	13	17	14
Collectively evaluated for impairment	21,123	19,071	19,505
Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	6,604	5,660	6,172
Charge-Offs	(1,021)	(195)	(1,716)
Recoveries	710	908	442
Provision (benefit)	1,680	231	762
Balance, end of period	7,973	6,604	5,660
Individually evaluated for impairment	13	17	14
Collectively evaluated for impairment	7,960	6,587	5,646
Real estate construction one-to-four family
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	643	675	629
Charge-Offs	0	0	0
Recoveries	0	0	0
Provision (benefit)	36	(32)	46
Balance, end of period	679	643	675
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	679	643	675
Real estate construction other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	1,017	1,275	1,566
Charge-Offs	0	0	0
Recoveries	0	0
Provision (benefit)	162	(258)	(291)
Balance, end of period	1,179	1,017	1,275
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	1,179	1,017	1,275
Real estate term owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	2,188	2,027	2,194
Charge-Offs	(85)	0	0
Recoveries	0	0	0
Provision (benefit)	522	161	(167)
Balance, end of period	2,625	2,188	2,027
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	2,625	2,188	2,027
Real estate term non-owner occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	5,180	5,799	6,043
Charge-Offs	0	0	0
Recoveries	0	0	0
Provision (benefit)	(47)	(619)	(244)
Balance, end of period	5,133	5,180	5,799
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	5,133	5,180	5,799
Real estate term other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	671	716	725
Charge-Offs	0	0	(28)
Recoveries	2	28	3
Provision (benefit)	106	(73)	16
Balance, end of period	779	671	716
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	779	671	716
Consumer secured by 1st deeds of trust
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	270	306	315
Charge-Offs	0	(4)	(143)
Recoveries	0	0	12
Provision (benefit)	(9)	(32)	122
Balance, end of period	261	270	306
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	261	270	306
Consumer other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	436	426	307
Charge-Offs	(15)	(18)	(39)
Recoveries	25	25	27
Provision (benefit)	(46)	3	131
Balance, end of period	400	436	426
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	400	436	426
Unallocated
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	2,079	2,635	3,510
Charge-Offs	0	0	0
Recoveries	0	0	0
Provision (benefit)	28	(556)	(875)
Balance, end of period	2,107	2,079	2,635
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	$ 2,107	$ 2,079	$ 2,635