XML 81 R65.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Loans and Asset Quality - Schedule of Reserve For Unfunded Commitments (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | $ 21,336 |  |  |  | $ 20,628 | $ 21,336 | $ 20,628 | $ 19,176
Provision for credit losses | $ 300 | $ 300 | $ 300 | 300 | $ 250 | $ 185 | $ 300 | 0 | 1,200 | 735 | 1,750
Ending Balance | 21,731 |  |  |  | 21,336 |  |  |  | 21,731 | 21,336 | 20,628
Provision for credit losses |  |  |  |  |  |  |  |  | 1,000 |  |
Impact of ASC 326 Adoption |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  |  |  |  |  | 278 |  | 278 |
Ending Balance |  |  |  |  |  |  |  |  |  |  | 278
Unfunded commitment |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 442 |  |  |  | 0 | 442 | 0 |
Provision for credit losses |  |  |  |  |  |  |  |  | 200 | 0 |
Ending Balance | $ 642 |  |  |  | 442 |  |  |  | 642 | 442 | 0
Unfunded commitment | Impact of ASC 326 Adoption |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | $ 0 |  |  |  | $ 442 | $ 0 | 442 |
Ending Balance |  |  |  |  | $ 0 |  |  |  |  | $ 0 | $ 442

X
- Definition Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Excluding Unfunded Loan Commitments + References No definition available. + Details
Name: | rrbi_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversalExcludingUnfundedLoanCommitments
Namespace Prefix: | rrbi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_UnfundedLoanCommitmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |