Loans and Allowance for Credit Losses - Average Impaired Loans Information Prior to Adoption of ASU 2016-13 (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2020
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	$ 22,817	$ 22,777
Interest Recognized	129	203
Commercial & industrial loans
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	12,892	13,161
Interest Recognized	65	95
Real estate construction one-to-four family
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	808	970
Interest Recognized	0	0
Real estate construction other
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	0	0
Interest Recognized	0	0
Real estate term owner occupied
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	6,707	6,378
Interest Recognized	49	78
Real estate term non-owner occupied
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	490	333
Interest Recognized	3	7
Real estate term other
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	1,562	1,572
Interest Recognized	7	14
Consumer secured by 1st deeds of trust
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	272	275
Interest Recognized	5	9
Consumer other
Financing Receivable, Impaired [Line Items]
Average Impaired Loans	86	88
Interest Recognized	$ 0	$ 0

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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