XML 36 R27.htm IDEA: XBRL DOCUMENT
v3.24.0.1

INVESTMENT SECURITIES (Tables) | 9 Months Ended
--- | ---
Dec. 31, 2023
INVESTMENT SECURITIES |
Schedule of amortized cost and approximate fair value of investment securities | The amortized cost and approximate fair value of investment securities consisted of the following at the dates indicated (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Gross |  | Gross |  | Estimated
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
​ | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Value
December 31, 2023 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Available for sale: |  | ​ | ​ |  | ​ |  |  | ​ |  |  | ​ |
Municipal securities | ​ | $ | 47,719 | ​ | $ | 49 | ​ | $ | (7,461) | ​ | $ | 40,307
Agency securities | ​ |  | 89,206 | ​ | ​ | — | ​ | ​ | (5,214) | ​ | ​ | 83,992
Real estate mortgage investment conduits (1) | ​ |  | 32,021 | ​ | ​ | — | ​ | ​ | (5,601) | ​ | ​ | 26,420
Residential mortgage-backed securities (1) | ​ |  | 14,191 | ​ | ​ | 3 | ​ | ​ | (898) | ​ | ​ | 13,296
Other mortgage-backed securities (2) | ​ |  | 36,292 | ​ | ​ | 4 | ​ | ​ | (3,850) | ​ | ​ | 32,446
Total available for sale | ​ | $ | 219,429 | ​ | $ | 56 | ​ | $ | (23,024) | ​ | $ | 196,461
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to maturity: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | $ | 10,326 | ​ | $ | — | ​ | $ | (2,796) | ​ | $ | 7,530
Agency securities | ​ | ​ | 54,077 | ​ | ​ | — | ​ | ​ | (4,293) | ​ | ​ | 49,784
Real estate mortgage investment conduits (1) | ​ | ​ | 32,538 | ​ | ​ | — | ​ | ​ | (5,031) | ​ | ​ | 27,507
Residential mortgage-backed securities (1) | ​ | ​ | 115,213 | ​ | ​ | — | ​ | ​ | (16,831) | ​ | ​ | 98,382
Other mortgage-backed securities (3) | ​ | ​ | 20,505 | ​ | ​ | — | ​ | ​ | (3,233) | ​ | ​ | 17,272
Total held to maturity | ​ | $ | 232,659 | ​ | $ | — | ​ | $ | (32,184) | ​ | $ | 200,475
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Gross |  | Gross |  | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Estimated
​ | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Fair Value
March 31, 2023 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Available for sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Municipal securities | ​ | $ | 47,857 | ​ | $ | 16 | ​ | $ | (7,612) | ​ | $ | 40,261
Agency securities | ​ |  | 91,858 | ​ | ​ | 23 | ​ | ​ | (5,974) | ​ | ​ | 85,907
Real estate mortgage investment conduits (1) | ​ |  | 34,247 | ​ | ​ | — | ​ | ​ | (5,370) | ​ | ​ | 28,877
Residential mortgage-backed securities (1) | ​ |  | 16,512 | ​ | ​ | — | ​ | ​ | (1,041) | ​ | ​ | 15,471
Other mortgage-backed securities (2) | ​ |  | 45,117 | ​ | ​ | 4 | ​ | ​ | (4,138) | ​ | ​ | 40,983
Total available for sale | ​ | $ | 235,591 | ​ | $ | 43 | ​ | $ | (24,135) | ​ | $ | 211,499
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to maturity: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | $ | 10,344 | ​ | $ | — | ​ | $ | (2,859) | ​ | $ | 7,485
Agency securities | ​ | ​ | 53,941 | ​ | ​ | — | ​ | ​ | (5,091) | ​ | ​ | 48,850
Real estate mortgage investment conduits (1) | ​ | ​ | 35,186 | ​ | ​ | — | ​ | ​ | (4,769) | ​ | ​ | 30,417
Residential mortgage-backed securities (1) | ​ | ​ | 123,773 | ​ | ​ | — | ​ | ​ | (17,542) | ​ | ​ | 106,231
Other mortgage-backed securities (3) | ​ | ​ | 20,599 | ​ | ​ | — | ​ | ​ | (3,368) | ​ | ​ | 17,231
Total held to maturity | ​ | $ | 243,843 | ​ | $ | — | ​ | $ | (33,629) | ​ | $ | 210,214
​
(1) | Comprised of Federal Home Loan Mortgage Corporation (“FHLMC”), Federal National Mortgage Association (“FNMA”) and Ginnie Mae (“GNMA”) issued securities.
(2) | Comprised of U.S. Small Business Administration (“SBA”) issued securities and commercial real estate (“CRE”) secured securities issued by FNMA and FHLMC.
(3) | Comprised of FHLMC and FNMA issued securities.
Schedule of contractual maturities of investment securities | The contractual maturities of investment securities as of December 31, 2023 are as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Available for Sale | ​ | Held to Maturity
​ |  | ​ | ​ |  | Estimated |  | ​ | ​ |  | Estimated
​ | ​ | Amortized | ​ | Fair | ​ | Amortized | ​ | Fair
​ | ​ | Cost | ​ | Value | ​ | Cost | ​ | Value
Due in one year or less | ​ | $ | 19,327 | ​ | $ | 19,198 | ​ | $ | 5,950 | ​ | $ | 5,789
Due after one year through five years | ​ |  | 81,420 | ​ |  | 76,498 | ​ |  | 42,356 | ​ |  | 39,510
Due after five years through ten years | ​ |  | 43,231 | ​ |  | 37,703 | ​ |  | 23,380 | ​ |  | 19,618
Due after ten years | ​ |  | 75,451 | ​ |  | 63,062 | ​ |  | 160,973 | ​ |  | 135,558
Total | ​ | $ | 219,429 | ​ | $ | 196,461 | ​ | $ | 232,659 | ​ | $ | 200,475
Schedule of temporarily impaired securities, fair value and unrealized losses | The fair value of temporarily impaired investment securities, the amount of unrealized losses and the length of time these unrealized losses existed are as follows at the dates indicated (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than 12 months | ​ | 12 months or longer | ​ | Total
​ |  | Estimated |  | ​ | ​ |  | Estimated |  | ​ | ​ |  | Estimated |  | ​ | ​
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
December 31, 2023 | ​ | Value | ​ | Losses | ​ | Value | ​ | Losses | ​ | Value | ​ | Losses
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Municipal securities | ​ | $ | 448 | ​ | $ | (1) | ​ | $ | 37,463 | ​ | $ | (7,460) | ​ | $ | 37,911 | ​ | $ | (7,461)
Agency securities | ​ |  | 5,819 | ​ |  | (17) | ​ |  | 78,173 | ​ |  | (5,197) | ​ |  | 83,992 | ​ |  | (5,214)
Real estate mortgage investment conduits (1) | ​ |  | — | ​ |  | — | ​ |  | 26,420 | ​ |  | (5,601) | ​ |  | 26,420 | ​ |  | (5,601)
Residential mortgage-backed securities (1) | ​ |  | — | ​ |  | — | ​ |  | 12,872 | ​ |  | (898) | ​ |  | 12,872 | ​ |  | (898)
Other mortgage-backed securities (2) | ​ |  | 846 | ​ |  | (2) | ​ |  | 31,260 | ​ |  | (3,848) | ​ |  | 32,106 | ​ |  | (3,850)
Total available for sale | ​ | $ | 7,113 | ​ | $ | (20) | ​ | $ | 186,188 | ​ | $ | (23,004) | ​ | $ | 193,301 | ​ | $ | (23,024)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | $ | — | ​ | $ | — | ​ | $ | 7,530 | ​ | $ | (2,796) | ​ | $ | 7,530 | ​ | $ | (2,796)
Agency securities | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 49,784 | ​ | ​ | (4,293) | ​ | ​ | 49,784 | ​ | ​ | (4,293)
Real estate mortgage investment conduits (1) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 27,507 | ​ | ​ | (5,031) | ​ | ​ | 27,507 | ​ | ​ | (5,031)
Residential mortgage-backed securities (1) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 98,382 | ​ | ​ | (16,831) | ​ | ​ | 98,382 | ​ | ​ | (16,831)
Other mortgage-backed securities (3) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 17,272 | ​ | ​ | (3,233) | ​ | ​ | 17,272 | ​ | ​ | (3,233)
Total held to maturity | ​ | $ | — | ​ | $ | — | ​ | $ | 200,475 | ​ | $ | (32,184) | ​ | $ | 200,475 | ​ | $ | (32,184)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
March 31, 2023 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Municipal securities | ​ | $ | 6,277 | ​ | $ | (133) | ​ | $ | 32,797 | ​ | $ | (7,479) | ​ | $ | 39,074 | ​ | $ | (7,612)
Agency securities | ​ | ​ | 43,451 | ​ |  | (747) | ​ |  | 36,646 | ​ |  | (5,227) | ​ |  | 80,097 | ​ |  | (5,974)
Real estate mortgage investment conduits (1) | ​ |  | 2,693 | ​ |  | (97) | ​ |  | 26,184 | ​ |  | (5,273) | ​ |  | 28,877 | ​ |  | (5,370)
Residential mortgage-backed securities (1) | ​ |  | 3,449 | ​ |  | (147) | ​ |  | 12,022 | ​ |  | (894) | ​ |  | 15,471 | ​ |  | (1,041)
Other mortgage-backed securities (2) | ​ |  | 13,876 | ​ |  | (376) | ​ |  | 26,619 | ​ |  | (3,762) | ​ |  | 40,495 | ​ |  | (4,138)
Total available for sale | ​ | $ | 69,746 | ​ | $ | (1,500) | ​ | $ | 134,268 | ​ | $ | (22,635) | ​ | $ | 204,014 | ​ | $ | (24,135)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | $ | — | ​ | $ | — | ​ | $ | 7,485 | ​ | $ | (2,859) | ​ | $ | 7,485 | ​ | $ | (2,859)
Agency securities | ​ | ​ | 8,413 | ​ | ​ | (240) | ​ | ​ | 40,437 | ​ | ​ | (4,851) | ​ | ​ | 48,850 | ​ | ​ | (5,091)
Real estate mortgage investment conduits (1) | ​ | ​ | 2,580 | ​ | ​ | (191) | ​ | ​ | 27,837 | ​ | ​ | (4,578) | ​ | ​ | 30,417 | ​ | ​ | (4,769)
Residential mortgage-backed securities (1) | ​ | ​ | 2 | ​ | ​ | — | ​ | ​ | 106,229 | ​ | ​ | (17,542) | ​ | ​ | 106,231 | ​ | ​ | (17,542)
Other mortgage-backed securities (3) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 17,231 | ​ | ​ | (3,368) | ​ | ​ | 17,231 | ​ | ​ | (3,368)
Total held to maturity | ​ | $ | 10,995 | ​ | $ | (431) | ​ | $ | 199,219 | ​ | $ | (33,198) | ​ | $ | 210,214 | ​ | $ | (33,629)
​
(1) | Comprised of FHLMC, FNMA and GNMA issued securities.
(2) | Comprised of SBA and CRE secured securities issued by FHLMC and FNMA.
(3) | Comprised of FHLMC and FNMA issued securities.

X
- Definition Schedule (table) showing the fair value of temporarily impaired securities, the amount of unrealized losses and the length of time these unrealized losses existed, as of the dates indicated. + References No definition available. + Details
Name: | rvsb_ScheduleOfTemporarilyImpairedSecuritiesFairValueAndUnrealizedLossesTableTextBlock
Namespace Prefix: | rvsb_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aaa) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-3 Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-3 Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-3 Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-3 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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