Loans and Allowance for Credit Losses - Loans modified in troubled debt restructurings (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($) contract	Dec. 31, 2020 USD ($) contract
Loans and Leases Receivable Disclosure [Line Items]
Number of loans - restructured accruing \| contract	5	7
Number of loans - restructured nonaccruing \| contract	2	3
Number of loans \| contract	7	10
Restructured accruing	$ 10,159	$ 10,472
Restructured nonaccruing	6,342	8,712
Troubled Debt Restructured	16,501	19,184
Specific allowance	3,356	3,722
Restructured and subsequently defaulted	6,342	8,712
Commercial
Loans and Leases Receivable Disclosure [Line Items]
Restructured accruing	1,043	1,276
Restructured nonaccruing	0	0
Troubled Debt Restructured	1,043	1,276
Specific allowance	140	733
Restructured and subsequently defaulted	0	0
Income producing - commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Restructured accruing	9,116	9,183
Restructured nonaccruing	6,342	6,342
Troubled Debt Restructured	15,458	15,525
Specific allowance	3,216	2,989
Restructured and subsequently defaulted	6,342	6,342
Owner occupied - commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Restructured accruing	0	13
Restructured nonaccruing	0	2,370
Troubled Debt Restructured	0	2,383
Specific allowance	0	0
Restructured and subsequently defaulted	0	2,370
Construction Commercial Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Restructured accruing	0	0
Restructured nonaccruing	0	0
Troubled Debt Restructured	0	0
Specific allowance	0	0
Restructured and subsequently defaulted	$ 0	$ 0

Number of financing receivables outstanding that have been modified by troubled debt restructurings.

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- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings accruing.

+ References

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings nonaccruing.

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Number of accruing financing receivables that have been modified by troubled debt restructurings.

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Number of nonaccruing financing receivables that have been modified by troubled debt restructurings.

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- Definition

Amount of credit loss expense (reversal of expense) for financing receivable from change in methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 11
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919244-210447

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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