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Loans and Allowance for Credit Losses on Loans - TDR (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) contract | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) contract
Troubled debt restructurings - modified during the period |  |  |
# of contracts | 1,000 |  | 3
Pre-modification recorded investment | $ 154,000 |  | $ 410,000
Post-modification recorded investment | 153,000 |  | 395,000
Other information |  |  |
Commitments to lend to borrowers whose loans were classified as impaired | $ 0 | $ 0 | $ 0
Financing receivable, purchase |  | 0 |
Financing receivable, sales |  | 0 |
Residential owner-occupied | Home Affordable Modification Program [Member] |  |  |
Troubled debt restructurings - modified during the period |  |  |
# of contracts | contract | 1 |  | 3
Pre-modification recorded investment | $ 154,000 |  | $ 410,000
Post-modification recorded investment | $ 153,000 |  | 395,000
HELOC | Others [Member] |  |  |
TDR's defaulted |  |  |
Pre-modification outstanding recorded investment during the period |  | $ 0 | $ 0

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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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