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Loans and Allowance for Credit Losses - Performing Loans Classified as Troubled Debt Restructuring Loans (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2020 USD ($) | Dec. 31, 2019 | Jun. 30, 2020 USD ($)
Consumer Loan |  |  |  |  |
Number of modifications | 0 | 0 | 0 | 0 |
Commercial Loan |  |  |  |  |
Number of modifications | 0 | 0 | 1 | 0 |
Construction Real Estate |  |  |  |  |
Number of modifications | 0 | 0 | 0 | 0 |
Residential real estate loans |  |  |  |  |
Number of modifications | 0 | 0 | 1 | 0 |
Commercial Real Estate |  |  |  |  |
Number of modifications | 0 | 0 | 2 | 0 |
Performing Loans |  |  |  |  |
Number of modifications |  |  | 18 |  | 20
Recorded Investment |  |  | $ 7,897 |  |
Recorded Investment |  |  |  |  | $ 8,580
Performing Loans | Commercial Loan |  |  |  |  |
Number of modifications |  |  | 8 |  | 7
Recorded Investment |  |  | $ 2,976 |  |
Recorded Investment |  |  |  |  | $ 3,245
Performing Loans | Residential real estate loans |  |  |  |  |
Number of modifications |  |  | 3 |  | 3
Recorded Investment |  |  | $ 1,014 |  |
Recorded Investment |  |  |  |  | $ 791
Performing Loans | Commercial Real Estate |  |  |  |  |
Number of modifications |  |  | 7 |  | 10
Recorded Investment |  |  | $ 3,907 |  |
Recorded Investment |  |  |  |  | $ 4,544
Total Loans |  |  |  |  |
Number of modifications | 0 | 0 | 4 | 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=121611835&loc=SL6953676-111524 + Details
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