Amount of credit risk or borrowing cost associated with refund transfers fee-based products.

No definition available.

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

- Definition

The annual percentage rate to the taxpayer for his or her portion of the total fee for all offering tiers.

+ References

No definition available.

+ Details

Name:	rbcaa_AnnualPercentageRateToTaxPayers
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	rbcaa_BasisOfPresentationLineItems
Namespace Prefix:	rbcaa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The fair value of consumer loans held for investment.

+ References

No definition available.

+ Details

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

- Definition

Represents information pertaining to the ownership interest retained from consumer loans held for sale.

+ References

No definition available.

+ Details

Name:	rbcaa_ConsumerLoansHeldForSaleInterestRetained
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents information pertaining to the ownership interest retained from consumer loans held for sale related to third party relationship one.

+ References

No definition available.

+ Details

Name:	rbcaa_ConsumerLoansHeldForSaleInterestRetainedForThirdPartyRelationshipOne
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents information pertaining to the ownership interest retained from consumer loans held for sale related to third party relationship two.

+ References

No definition available.

+ Details

Name:	rbcaa_ConsumerLoansHeldForSaleInterestRetainedForThirdPartyRelationshipTwo
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents information pertaining to consumer loans held for sale period within origination.

+ References

No definition available.

+ Details

Name:	rbcaa_ConsumerLoansHeldForSalePeriod
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of fees charged from customers under easy advance.

+ References

No definition available.

+ Details

Name:	rbcaa_EasyAdvanceFeeExpense
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the period within which EAs were generally repaid after the taxpayer customer’s tax return was submitted to the applicable tax authority.

+ References

No definition available.

+ Details

Name:	rbcaa_MaximumPeriodOfEasyAdvancesRepaid
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the maximum period beyond which EAs are generally charged-off after the taxpayer customer’s tax return is submitted to the applicable tax authority.

+ References

No definition available.

+ Details

Name:	rbcaa_MaximumPeriodToWriteOffUnpaidEasyAdvances
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum repayment period before Easy Advances considered delinquent.

+ References

No definition available.

+ Details

Name:	rbcaa_MaximumRepaymentPeriodBeforeEasyAdvancesConsideredDelinquent
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the maximum advance amount of multiple loan-amount tiers, subject to underwriting.

+ References

No definition available.

+ Details

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

- Definition

Represents the number of third

+ References

No definition available.

+ Details

Name:	rbcaa_NumberOfThirdPartyRelationship
Namespace Prefix:	rbcaa_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of loan originated under restarted program, to third party service provider carried as held for sale.

+ References

No definition available.

+ Details

Name:	rbcaa_PercentageOfLoanOriginatedUnderRestartedProgramHeldForSale
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents information pertaining to percentage of consumer loans receivables held for sale.

+ References

No definition available.

+ Details

Name:	rbcaa_PercentageOfLoanReceivableHeldForSale
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents information pertaining to percentage of consumer loans receivables held for sale relating to third party relationship two.

+ References

No definition available.

+ Details

Name:	rbcaa_PercentageOfLoanReceivableHeldForSaleForThirdPartyRelationshipTwo
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of ownership maintained with each borrower.

+ References

No definition available.

+ Details

Name:	rbcaa_PercentageOfOwnershipMaintainedWithEachBorrower
Namespace Prefix:	rbcaa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The period Easy Advance ("EA") tax credit product is offered.

+ References

No definition available.

+ Details

Name:	rbcaa_PeriodEasyAdvanceTaxCreditOffered
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of sale of loan originated under the restarted program carried as held for sale.

+ References

No definition available.

+ Details

Name:	rbcaa_TermOfSaleOfLoanOriginatedUnderRestartedProgram
Namespace Prefix:	rbcaa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period between issuance and maturity of loan held for sale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_LoansHeldForSaleTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=rbcaa_TaxRefundSolutionsSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_EasyAdvancesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=rbcaa_RepublicCreditSolutionsDivisionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_ShortTermLineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_ShortTermInstallmentLoanMember
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:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbcaa_ShortTermHealthcareReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - SEGMENTS (Details)	1 Months Ended	2 Months Ended			12 Months Ended		27 Months Ended
	Dec. 31, 2019 USD ($)	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2017	Dec. 31, 2019 USD ($) item	Dec. 31, 2018 USD ($)	Mar. 31, 2018
Basis of Presentation
Consumer loans receivable held for investment	$ 998,000				$ 998,000	$ 1,922,000
Tax Refund Solutions \| Easy Advances
Basis of Presentation
Amount of credit risk associated with refund transfers	0				0
Period Easy Advance tax credit product offered		2 months	2 months	2 months
Fee charged					0	0
Multiple loan-amount tiers, maximum advance amount	6,250				$ 6,250	3,500
APR to the taxpayer for his or her portion of the total fee for all offering tiers (as a percent)					36.00%
EA's repayment term					21 days
Maximum repayment period before Easy Advances considered delinquent					21 days
Duration of unpaid EA's write off					111 days
Republic Credit Solutions
Basis of Presentation
Percentage of loan receivable held for sale (as a percent)					90.00%
Interest retained (as a percent)					10.00%
Consumer loans held for sale period					3 days
Republic Credit Solutions \| Line of credit
Basis of Presentation
Percentage of loan receivable held for sale (as a percent)					90.00%
Percentage of ownership maintained with each borrower					100.00%
Interest retained (as a percent)					10.00%
Consumer loans held for sale period					3 days
Republic Credit Solutions \| Installment loan
Basis of Presentation
Consumer loans receivable held for investment	$ 998,000				$ 998,000	$ 1,900,000
Term for intent to sell loans	16 days						21 days
Percentage of loan originated under restarted program, held for sale							100.00%
Republic Credit Solutions \| Installment loan \| Minimum
Basis of Presentation
Loan held-for-sale term	12 months				12 months
Republic Credit Solutions \| Installment loan \| Maximum
Basis of Presentation
Loan held-for-sale term	60 months				60 months
Republic Credit Solutions \| Healthcare receivables
Basis of Presentation
Number of third party relationship \| item					2
Interest retained - Third party relationship one (as a percent)					100.00%
Interest retained - Third party relationship two (as a percent)					100.00%
Percentage of loan receivable held for sale - Third party relationship two (as a percent)					100.00%