XML 58 R48.htm IDEA: XBRL DOCUMENT
v3.25.2

LOANS AND ACL - Risk category of bank loans by year of origination (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Mar. 31, 2025 | Jun. 30, 2025
Origination year |  |  |
2026/2025 |  | $ 86,438 | $ 20,204
2025/2024 |  | 76,035 | 89,253
2024/2023 |  | 166,330 | 76,980
2023/2022 |  | 323,921 | 163,266
2022/2021 |  | 116,522 | 318,843
Prior |  | 259,679 | 363,529
Revolving Loans |  | 33,535 | 36,005
Total Loans Receivable |  | 1,062,460 | 1,068,080
Gross write-offs |  |  |
2025/2024 |  | 86 |
2023/2022 |  | 25 |
Revolving Loans |  | 12 |
Total Loans Receivable | $ 1 | 123 |
Commercial and Construction | Commercial Business |  |  |
Origination year |  |  |
2026/2025 |  | 12,804 | 2,208
2025/2024 |  | 17,592 | 14,228
2024/2023 |  | 56,013 | 18,010
2023/2022 |  | 86,203 | 53,711
2022/2021 |  | 21,390 | 84,760
Prior |  | 24,945 | 43,972
Revolving Loans |  | 13,988 | 14,937
Total Loans Receivable |  | 232,935 | 231,826
Commercial Real Estate Portfolio Segment |  |  |
Origination year |  |  |
Total Loans Receivable |  | 950,363 | 945,841
Commercial Real Estate Portfolio Segment | Commercial Real Estate |  |  |
Origination year |  |  |
2026/2025 |  | 44,477 | 10,001
2025/2024 |  | 45,375 | 47,954
2024/2023 |  | 64,643 | 51,232
2023/2022 |  | 143,600 | 64,172
2022/2021 |  | 86,768 | 141,460
Prior |  | 207,322 | 284,798
Total Loans Receivable |  | 592,185 | 599,617
Gross write-offs |  |  |
2025/2024 |  | 80 |
Total Loans Receivable |  | 80 |
Commercial Real Estate Portfolio Segment | Land |  |  |
Origination year |  |  |
2026/2025 |  | 615 |
2025/2024 |  |  | 611
2024/2023 |  | 2,570 |
2023/2022 |  | 84 | 2,545
2022/2021 |  |  | 81
Prior |  | 457 | 435
Revolving Loans |  | 884 |
Revolving Loans |  |  | (13)
Total Loans Receivable |  | 4,610 | 3,659
Commercial Real Estate Portfolio Segment | Multi-Family |  |  |
Origination year |  |  |
2026/2025 |  | 1,132 | 158
2025/2024 |  | 947 | 1,127
2024/2023 |  | 39,462 | 941
2023/2022 |  | 35,831 | 39,197
2022/2021 |  | 4,275 | 35,624
Prior |  | 9,804 | 13,559
Total Loans Receivable |  | 91,451 | 90,606
Commercial Real Estate Portfolio Segment | Real Estate Construction |  |  |
Origination year |  |  |
2026/2025 |  | 14,092 | 237
2025/2024 |  | 11,784 | 10,092
2024/2023 |  | 3,306 | 6,454
2023/2022 |  |  | 3,350
Total Loans Receivable |  | 29,182 | 20,133
Consumer |  |  |
Origination year |  |  |
Total Loans Receivable |  | 112,097 | 122,239
Gross write-offs |  |  |
Total Loans Receivable | $ 1 |  |
Consumer | Real estate one-to-four family |  |  |
Origination year |  |  |
2026/2025 |  | 133 |
2025/2024 |  |  | 5
2023/2022 |  | 58,107 |
2022/2021 |  | 4,041 | 56,841
Prior |  | 17,145 | 20,717
Revolving Loans |  | 18,257 | 20,584
Total Loans Receivable |  | 97,683 | 98,147
Gross write-offs |  |  |
Revolving Loans |  | 11 |
Total Loans Receivable |  | 11 |
Consumer | Other installment |  |  |
Origination year |  |  |
2026/2025 |  | 13,185 | 7,600
2025/2024 |  | 337 | 15,236
2024/2023 |  | 336 | 343
2023/2022 |  | 96 | 291
2022/2021 |  | 48 | 77
Prior |  | 6 | 48
Revolving Loans |  | 406 | 497
Total Loans Receivable |  | 14,414 | 24,092
Gross write-offs |  |  |
2025/2024 |  | 6 |
2023/2022 |  | 25 |
Revolving Loans |  | 1 |
Total Loans Receivable |  | 32 |
Pass |  |  |
Origination year |  |  |
2026/2025 |  | 84,474 | 20,204
2025/2024 |  | 72,841 | 87,462
2024/2023 |  | 162,509 | 73,788
2023/2022 |  | 318,104 | 156,733
2022/2021 |  | 116,032 | 313,088
Prior |  | 224,723 | 328,467
Revolving Loans |  | 32,369 | 31,911
Total Loans Receivable |  | 1,011,052 | 1,011,653
Pass | Commercial and Construction | Commercial Business |  |  |
Origination year |  |  |
2026/2025 |  | 10,840 | 2,208
2025/2024 |  | 17,592 | 12,437
2024/2023 |  | 56,013 | 18,010
2023/2022 |  | 85,632 | 53,711
2022/2021 |  | 20,918 | 84,230
Prior |  | 24,198 | 42,903
Revolving Loans |  | 12,822 | 10,843
Total Loans Receivable |  | 228,015 | 224,342
Pass | Commercial Real Estate Portfolio Segment | Commercial Real Estate |  |  |
Origination year |  |  |
2026/2025 |  | 44,477 | 10,001
2025/2024 |  | 42,181 | 47,954
2024/2023 |  | 61,005 | 48,040
2023/2022 |  | 138,354 | 57,820
2022/2021 |  | 86,768 | 136,253
Prior |  | 173,364 | 251,052
Total Loans Receivable |  | 546,149 | 551,120
Pass | Commercial Real Estate Portfolio Segment | Land |  |  |
Origination year |  |  |
2026/2025 |  | 615 |
2025/2024 |  |  | 611
2024/2023 |  | 2,570 |
2023/2022 |  | 84 | 2,545
2022/2021 |  |  | 81
Prior |  | 457 | 435
Revolving Loans |  | 884 |
Revolving Loans |  |  | (13)
Total Loans Receivable |  | 4,610 | 3,659
Pass | Commercial Real Estate Portfolio Segment | Multi-Family |  |  |
Origination year |  |  |
2026/2025 |  | 1,132 | 158
2025/2024 |  | 947 | 1,127
2024/2023 |  | 39,279 | 941
2023/2022 |  | 35,831 | 39,016
2022/2021 |  | 4,257 | 35,606
Prior |  | 9,583 | 13,341
Total Loans Receivable |  | 91,029 | 90,189
Pass | Commercial Real Estate Portfolio Segment | Real Estate Construction |  |  |
Origination year |  |  |
2026/2025 |  | 14,092 | 237
2025/2024 |  | 11,784 | 10,092
2024/2023 |  | 3,306 | 6,454
2023/2022 |  |  | 3,350
Total Loans Receivable |  | 29,182 | 20,133
Pass | Consumer | Real estate one-to-four family |  |  |
Origination year |  |  |
2026/2025 |  | 133 |
2025/2024 |  |  | 5
2023/2022 |  | 58,107 |
2022/2021 |  | 4,041 | 56,841
Prior |  | 17,115 | 20,688
Revolving Loans |  | 18,257 | 20,584
Total Loans Receivable |  | 97,653 | 98,118
Pass | Consumer | Other installment |  |  |
Origination year |  |  |
2026/2025 |  | 13,185 | 7,600
2025/2024 |  | 337 | 15,236
2024/2023 |  | 336 | 343
2023/2022 |  | 96 | 291
2022/2021 |  | 48 | 77
Prior |  | 6 | 48
Revolving Loans |  | 406 | 497
Total Loans Receivable |  | 14,414 | 24,092
Special Mention |  |  |
Origination year |  |  |
2026/2025 |  | 1,964 |
2025/2024 |  | 3,164 | 1,791
2024/2023 |  | 3,821 | 3,162
2023/2022 |  | 5,817 | 6,533
2022/2021 |  | 18 | 5,737
Prior |  | 32,531 | 24,333
Revolving Loans |  | 1,166 | 4,094
Total Loans Receivable |  | 48,481 | 45,650
Special Mention | Commercial and Construction | Commercial Business |  |  |
Origination year |  |  |
2026/2025 |  | 1,964 |
2025/2024 |  |  | 1,791
2023/2022 |  | 571 |
2022/2021 |  |  | 530
Prior |  | 456 | 394
Revolving Loans |  | 1,166 | 4,094
Total Loans Receivable |  | 4,157 | 6,809
Special Mention | Commercial Real Estate Portfolio Segment | Commercial Real Estate |  |  |
Origination year |  |  |
2025/2024 |  | 3,164 |
2024/2023 |  | 3,638 | 3,162
2023/2022 |  | 5,246 | 6,352
2022/2021 |  |  | 5,207
Prior |  | 31,920 | 23,805
Total Loans Receivable |  | 43,968 | 38,526
Special Mention | Commercial Real Estate Portfolio Segment | Multi-Family |  |  |
Origination year |  |  |
2024/2023 |  | 183 |
2023/2022 |  |  | 181
2022/2021 |  | 18 |
Prior |  | 155 | 134
Total Loans Receivable |  | 356 | 315
Substandard |  |  |
Origination year |  |  |
2025/2024 |  | 30 |
2024/2023 |  |  | 30
2022/2021 |  | 472 | 18
Prior |  | 2,425 | 10,729
Total Loans Receivable |  | 2,927 | 10,777
Substandard | Commercial and Construction | Commercial Business |  |  |
Origination year |  |  |
2022/2021 |  | 472 |
Prior |  | 291 | 675
Total Loans Receivable |  | 763 | 675
Substandard | Commercial Real Estate Portfolio Segment | Commercial Real Estate |  |  |
Origination year |  |  |
2025/2024 |  | 30 |
2024/2023 |  |  | 30
Prior |  | 2,038 | 9,941
Total Loans Receivable |  | 2,068 | 9,971
Substandard | Commercial Real Estate Portfolio Segment | Multi-Family |  |  |
Origination year |  |  |
2022/2021 |  |  | 18
Prior |  | 66 | 84
Total Loans Receivable |  | 66 | 102
Substandard | Consumer | Real estate one-to-four family |  |  |
Origination year |  |  |
Prior |  | 30 | 29
Total Loans Receivable |  | $ 30 | $ 29

X
- Definition Amortized cost excluding accrued interest, net, of financing receivable that can be withdrawn, repaid, and redrawn. + References No definition available. + Details
Name: | rvsb_FinancingReceivableExcludingAccruedInterestRevolvingNet
Namespace Prefix: | rvsb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_LandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rvsb_RealEstateOneToFourFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rvsb_OtherInstallmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |