Fair value portion of consumer loans held-for-sale.

No definition available.

Name:	rbcaa_ConsumerHeldForSaleFairValueDisclosure
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_FairValueInputsAssetsQuantitativeInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage above fair value that an investor seeking to acquire control of an entity will pay, used as an input to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueInputsControlPremium
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

+ Details

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Loss, including interest and principal, incurred on a defaulted security, expressed as a percentage of the original principal balance, used as an input to measure fair value.

+ References

+ Details

Name:	us-gaap_FairValueInputsLossSeverity
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.

+ References

+ Details

Name:	us-gaap_FairValueInputsPrepaymentRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value.

+ References

+ Details

Name:	us-gaap_FairValueInputsProbabilityOfDefault
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Mortgage-Backed Securities
-URI http://asc.fasb.org/extlink&oid=6517959

+ Details

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

- Details

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

- Details

Name:	us-gaap_ValuationTechniqueAxis=rbcaa_ContractualTermsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_ValuationTechniqueAxis=rbcaa_DiscountedCashFlowValuationTechniqueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

FAIR VALUE - RECURRING LEVEL 3 MEASUREMENTS (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016
Fair value inputs quantitative information
Aggregate fair value of consumer loan	$ 3,235	$ 2,198	$ 3,679	$ 6,826	$ 415
Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Aggregate fair value of consumer loan	3,235	2,198
Recurring basis
Fair value inputs quantitative information
Aggregate fair value of consumer loan	3,235	2,198
Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Aggregate fair value of consumer loan	3,235	2,198
Consumer Loans Held For Sale
Fair value inputs quantitative information
Aggregate fair value of consumer loan	3,235	2,198
Consumer Loans Held For Sale \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Aggregate fair value of consumer loan	$ 3,235	$ 2,198
Consumer Loans Held For Sale \| Contractual Terms \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Net Premium (as a percent)	0.90%	0.90%
Discount rate (as a percent)	5.00%	5.00%
Private label mortgage backed security \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Mortgage backed security fair value	$ 4,540	$ 4,777
Private label mortgage backed security \| Discounted cash flow \| Minimum \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Constant prepayment rate (as a percent)	3.00%	2.00%
Probability of default (as a percent)	3.00%	3.00%
Loss severity (as a percent)	60.00%	60.00%
Private label mortgage backed security \| Discounted cash flow \| Maximum \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Constant prepayment rate (as a percent)	6.50%	6.50%
Probability of default (as a percent)	8.00%	9.00%
Loss severity (as a percent)	85.00%	90.00%