XML 103 R89.htm IDEA: XBRL DOCUMENT
v3.22.1

FAIR VALUE MEASUREMENTS - Level 3 inputs for financial instruments measured at fair value (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired Loans Valuation Technique [Extensible Enumeration] | us-gaap:ValuationTechniqueDiscountedCashFlowMember | us-gaap:ValuationTechniqueDiscountedCashFlowMember
Impaired Loans Measurement Input [Extensible Enumeration] | us-gaap:MeasurementInputDiscountRateMember | us-gaap:MeasurementInputDiscountRateMember
Adjustments to the appraised values of impaired loans | $ 0 | $ 0
Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 5.375% | 5.375%
Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 8.00% | 8.00%

X
- Definition The amount of adjustments to the appraised values of impaired loans. + References No definition available. + Details
Name: | rvsb_ImpairedLoansAppraisedValueAdjustments
Namespace Prefix: | rvsb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Value of input used to measure servicing asset. + References No definition available. + Details
Name: | rvsb_ImpairedLoansMeasurementInput
Namespace Prefix: | rvsb_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Indicates measurement input for impaired loans. + References No definition available. + Details
Name: | rvsb_ImpairedLoansMeasurementInputExtensibleEnumeration
Namespace Prefix: | rvsb_
Data Type: | enum2:enumerationSetItemType
Balance Type: | na
Period Type: | instant

X
- Definition Indicates valuation technique for measuring impaired loans. + References No definition available. + Details
Name: | rvsb_ImpairedLoansValuationTechniqueExtensibleEnumeration
Namespace Prefix: | rvsb_
Data Type: | enum2:enumerationSetItemType
Balance Type: | na
Period Type: | instant

X
- 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |