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Loans and Allowance for Credit Losses - Loans modified in troubled debt restructurings (Details) $ in Thousands | 12 Months Ended
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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

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- Definition Number of financing receivables outstanding that have been modified by troubled debt restructurings. + References No definition available. + Details
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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings accruing. + References No definition available. + Details
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- Definition Number of accruing financing receivables that have been modified by troubled debt restructurings. + References No definition available. + Details
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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 + Details
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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 + Details
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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 + Details
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