FAIR VALUE - RECURRING LEVEL 3 MEASUREMENTS (Details) - Fair Value, Inputs, Level 3 $ in Thousands	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Private label mortgage backed security \| Recurring basis
Fair value inputs quantitative information
Mortgage backed security fair value	$ 1,885	$ 2,127
Debt Securities - Valuation technique	us-gaap:ValuationTechniqueDiscountedCashFlowMember	us-gaap:ValuationTechniqueDiscountedCashFlowMember
Private label mortgage backed security \| Minimum \| Recurring basis \| Constant Prepayment Rate
Fair value inputs quantitative information
Measurable input	0.028	0.045
Private label mortgage backed security \| Minimum \| Recurring basis \| Probability of default
Fair value inputs quantitative information
Measurable input	0.018	0.018
Private label mortgage backed security \| Minimum \| Recurring basis \| Loss Severity
Fair value inputs quantitative information
Measurable input	0.12	0.25
Private label mortgage backed security \| Maximum \| Recurring basis \| Constant Prepayment Rate
Fair value inputs quantitative information
Measurable input	0.045	0.047
Private label mortgage backed security \| Maximum \| Recurring basis \| Probability of default
Fair value inputs quantitative information
Measurable input	0.093	0.093
Private label mortgage backed security \| Maximum \| Recurring basis \| Loss Severity
Fair value inputs quantitative information
Measurable input	0.35	0.35
Consumer Loans Held For Sale \| Nonrecurring basis
Fair value inputs quantitative information
Consumer Loans Held for Sale Fair Value	$ 8,443	$ 4,706
Consumer Loans Held For Sale \| Nonrecurring basis \| Net Premium
Fair value inputs quantitative information
Loans Held-for-sale, Measurement Input	0.0015	0.0015
Consumer Loans Held For Sale \| Nonrecurring basis \| Discount sales
Fair value inputs quantitative information
Loans Held-for-sale, Measurement Input	0.1000	0.1000

Represents the fair value of consumer loans held for sale.

No definition available.

Name:	rbcaa_ConsumerLoansHeldForSaleFairValue
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Value of input used to measure investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Indicates valuation technique for measuring investment in debt security at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleValuationTechniqueExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	enum2:enumerationSetItemType
Balance Type:	na
Period Type:	instant

- 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.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Value of input used to measure loan, held for sale.

+ References

+ Details

Name:	us-gaap_LoansHeldForSaleMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale.

+ References

No definition available.

+ Details

Name:	us-gaap_MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputConstantPrepaymentRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDefaultRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputLossSeverityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=rbcaa_ConsumerLoansHeldForSaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=rbcaa_MeasurementInputNetPremiumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: