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

Represents deposits in individual retirement accounts in denominations less than $250,000.

No definition available.

Name:	rbcaa_IndividualRetirementAccountsLessThan250000
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of interest-bearing domestic certificate of deposit liabilities in denominations of less than $100,000.

No definition available.

Name:	rbcaa_InterestBearingDomesticDepositCertificatesOfDepositsLessThan250000
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of interest-bearing domestic prepaid card deposits.

No definition available.

Name:	rbcaa_InterestBearingDomesticDepositPrepaidCard
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of domestic noninterest bearing prepaid card deposits held by the entity, which may include demand deposits, checking, brokered and retail deposits

No definition available.

Name:	rbcaa_NonInterestBearingPrepaidCardDepositsDomestic
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of other domestic noninterest-bearing deposits held by the entity, which may include demand deposits, checking, brokered and retail deposits.

No definition available.

Name:	rbcaa_NoninterestBearingDepositLiabilitiesOtherDomestic
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of reciprocal interest-bearing domestic money market deposit liabilities.

No definition available.

Name:	rbcaa_ReciprocalMoneyMarket
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of reciprocal interest-bearing domestic time demand account deposit liabilities.

No definition available.

Name:	rbcaa_ReciprocalTimeDeposits
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $250,000 or more.

No definition available.

Name:	rbcaa_TimeDeposits250000OrMore
Namespace Prefix:	rbcaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The aggregate of all domestic interest-bearing and noninterest-bearing deposit liabilities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Name:	us-gaap_DepositsDomestic
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Total amount of interest-bearing domestic deposit liabilities, which may include brokered, retail, demand, checking, notice of withdrawal, money market and other interest-bearing deposits.

Name:	us-gaap_InterestBearingDepositLiabilitiesDomestic
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of interest-bearing domestic third-party deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities.

Name:	us-gaap_InterestBearingDomesticDepositBrokered
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of money in interest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits.

Name:	us-gaap_InterestBearingDomesticDepositDemand
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of interest-bearing domestic money market demand account deposit liabilities.

Name:	us-gaap_InterestBearingDomesticDepositMoneyMarket
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of interest-bearing domestic savings deposit liabilities. Saving deposits bear interest and have no stated maturity.

Name:	us-gaap_InterestBearingDomesticDepositSavings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of domestic noninterest-bearing deposits held by the entity, which may include demand deposits, checking, brokered and retail deposits.