XML 43 R29.htm IDEA: XBRL DOCUMENT
v3.22.1

INVESTMENT SECURITIES (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2022
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
March 31, 2022 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Available for sale: |  | ​ | ​ |  | ​ |  |  | ​ |  |  | ​ |
Municipal securities | ​ | $ | 44,104 | ​ | $ | 14 | ​ | $ | (4,514) | ​ | $ | 39,604
Agency securities | ​ |  | 43,848 | ​ | ​ | 1 | ​ | ​ | (3,144) | ​ | ​ | 40,705
Real estate mortgage investment conduits (1) | ​ |  | 35,563 | ​ | ​ | 1 | ​ | ​ | (2,847) | ​ | ​ | 32,717
Residential mortgage-backed securities (1) | ​ |  | 17,368 | ​ | ​ | 13 | ​ | ​ | (436) | ​ | ​ | 16,945
Other mortgage-backed securities (2) | ​ |  | 37,991 | ​ | ​ | 28 | ​ | ​ | (2,208) | ​ | ​ | 35,811
Total available for sale | ​ | $ | 178,874 | ​ | $ | 57 | ​ | $ | (13,149) | ​ | $ | 165,782
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to maturity: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | $ | 10,368 | ​ | $ | — | ​ | $ | (1,422) | ​ | $ | 8,946
Agency securities | ​ | ​ | 45,277 | ​ | ​ | — | ​ | ​ | (2,450) | ​ | ​ | 42,827
Real estate mortgage investment conduits (1) | ​ | ​ | 39,394 | ​ | ​ | — | ​ | ​ | (2,457) | ​ | ​ | 36,937
Residential mortgage-backed securities (1) | ​ | ​ | 137,343 | ​ | ​ | — | ​ | ​ | (8,883) | ​ | ​ | 128,460
Other mortgage-backed securities (3) | ​ | ​ | 20,718 | ​ | ​ | — | ​ | ​ | (1,859) | ​ | ​ | 18,859
Total held to maturity | ​ | $ | 253,100 | ​ | $ | — | ​ | $ | (17,071) | ​ | $ | 236,029
​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Gross |  | Gross |  | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Estimated
​ | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Fair Value
March 31, 2021 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Available for sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Municipal securities | ​ | $ | 23,883 | ​ | $ | 238 | ​ | $ | (555) | ​ | $ | 23,566
Agency securities | ​ |  | 25,996 | ​ | ​ | 5 | ​ | ​ | (686) | ​ | ​ | 25,315
Real estate mortgage investment conduits (1) | ​ |  | 55,826 | ​ | ​ | 469 | ​ | ​ | (480) | ​ | ​ | 55,815
Residential mortgage-backed securities (1) | ​ |  | 71,787 | ​ | ​ | 1,075 | ​ | ​ | (614) | ​ | ​ | 72,248
Other mortgage-backed securities (2) | ​ |  | 39,022 | ​ | ​ | 514 | ​ | ​ | (176) | ​ | ​ | 39,360
Total available for sale | ​ | $ | 216,514 | ​ | $ | 2,301 | ​ | $ | (2,511) | ​ | $ | 216,304
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to maturity: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | $ | 10,391 | ​ | $ | — | ​ | $ | (509) | ​ | $ | 9,882
Agency securities | ​ | ​ | 7,688 | ​ | ​ | — | ​ | ​ | (220) | ​ | ​ | 7,468
Real estate mortgage investment conduits (1) | ​ | ​ | 9,207 | ​ | ​ | — | ​ | ​ | (141) | ​ | ​ | 9,066
Residential mortgage-backed securities (3) | ​ | ​ | 6,175 | ​ | ​ | — | ​ | ​ | (119) | ​ | ​ | 6,056
Other mortgage-backed securities (2) | ​ | ​ | 6,113 | ​ | ​ | — | ​ | ​ | (365) | ​ | ​ | 5,748
Total held to maturity | ​ | $ | 39,574 | ​ | $ | — | ​ | $ | (1,354) | ​ | $ | 38,220
​ (1) Comprised of 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 March 31, 2022 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 | ​ | $ | 2,002 | ​ | $ | 2,004 | ​ | $ | — | ​ | $ | —
Due after one year through five years | ​ |  | 14,073 | ​ |  | 13,339 | ​ |  | 24,344 | ​ |  | 23,559
Due after five years through ten years | ​ |  | 63,995 | ​ |  | 59,735 | ​ |  | 39,407 | ​ |  | 36,305
Due after ten years | ​ |  | 98,804 | ​ |  | 90,704 | ​ |  | 189,349 | ​ |  | 176,165
Total | ​ | $ | 178,874 | ​ | $ | 165,782 | ​ | $ | 253,100 | ​ | $ | 236,029
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
March 31, 2022 | ​ | Value | ​ | Losses | ​ | Value | ​ | Losses | ​ | Value | ​ | Losses
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Municipal securities | ​ | $ | 32,767 | ​ | $ | (4,293) | ​ | $ | 3,282 | ​ | $ | (221) | ​ | $ | 36,049 | ​ | $ | (4,514)
Agency securities | ​ |  | 22,288 | ​ |  | (1,565) | ​ |  | 16,414 | ​ |  | (1,579) | ​ |  | 38,702 | ​ |  | (3,144)
Real estate mortgage investment conduits (1) | ​ |  | 17,334 | ​ |  | (1,310) | ​ |  | 15,275 | ​ |  | (1,537) | ​ |  | 32,609 | ​ |  | (2,847)
Residential mortgage-backed securities (1) | ​ |  | 15,702 | ​ |  | (436) | ​ |  | — | ​ |  | — | ​ |  | 15,702 | ​ |  | (436)
Other mortgage-backed securities (2) | ​ |  | 32,408 | ​ |  | (2,194) | ​ |  | 769 | ​ |  | (14) | ​ |  | 33,177 | ​ |  | (2,208)
Total available for sale | ​ | $ | 120,499 | ​ | $ | (9,798) | ​ | $ | 35,740 | ​ | $ | (3,351) | ​ | $ | 156,239 | ​ | $ | (13,149)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | $ | 5,911 | ​ | $ | (816) | ​ | $ | 3,036 | ​ | $ | (606) | ​ | $ | 8,947 | ​ | $ | (1,422)
Agency securities | ​ | ​ | 35,930 | ​ | ​ | (1,708) | ​ | ​ | 6,897 | ​ | ​ | (742) | ​ | ​ | 42,827 | ​ | ​ | (2,450)
Real estate mortgage investment conduits (1) | ​ | ​ | 26,233 | ​ | ​ | (1,715) | ​ | ​ | 7,735 | ​ | ​ | (742) | ​ | ​ | 33,968 | ​ | ​ | (2,457)
Residential mortgage-backed securities (1) | ​ | ​ | 111,096 | ​ | ​ | (7,160) | ​ | ​ | 17,363 | ​ | ​ | (1,723) | ​ | ​ | 128,459 | ​ | ​ | (8,883)
Other mortgage-backed securities (3) | ​ | ​ | 13,472 | ​ | ​ | (1,153) | ​ | ​ | 5,386 | ​ | ​ | (706) | ​ | ​ | 18,858 | ​ | ​ | (1,859)
Total held to maturity | ​ | $ | 192,642 | ​ | $ | (12,552) | ​ | $ | 40,417 | ​ | $ | (4,519) | ​ | $ | 233,059 | ​ | $ | (17,071)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
March 31, 2021 |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Municipal securities | ​ | $ | 17,529 | ​ | $ | (555) | ​ | $ | — | ​ | $ | — | ​ | $ | 17,529 | ​ | $ | (555)
Agency securities | ​ | ​ | 23,306 | ​ | ​ | (686) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 23,306 | ​ | ​ | (686)
Real estate mortgage investment conduits (1) | ​ |  | 25,462 | ​ | ​ | (480) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 25,462 | ​ | ​ | (480)
Residential mortgage-backed securities (1) | ​ |  | 33,164 | ​ |  | (614) | ​ |  | — | ​ | ​ | — | ​ | ​ | 33,164 | ​ |  | (614)
Other mortgage-backed securities (6) | ​ |  | 5,856 | ​ | ​ | (125) | ​ | ​ | 2,225 | ​ | ​ | (51) | ​ | ​ | 8,081 | ​ | ​ | (176)
Total available for sale | ​ | $ | 105,317 | ​ | $ | (2,460) | ​ | $ | 2,225 | ​ | $ | (51) | ​ | $ | 107,542 | ​ | $ | (2,511)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Held to maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Municipal securities | ​ | $ | 9,882 | ​ | $ | (509) | ​ | $ | — | ​ | $ | — | ​ | $ | 9,882 | ​ | $ | (509)
Agency securities | ​ | ​ | 7,468 | ​ | ​ | (220) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 7,468 | ​ | ​ | (220)
Real estate mortgage investment conduits (4) | ​ | ​ | 9,066 | ​ | ​ | (141) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 9,066 | ​ | ​ | (141)
Residential mortgage-backed securities (5) | ​ | ​ | 6,035 | ​ | ​ | (119) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 6,035 | ​ | ​ | (119)
Other mortgage-backed securities (3) | ​ | ​ | 5,748 | ​ | ​ | (365) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 5,748 | ​ | ​ | (365)
Total held to maturity | ​ | $ | 38,199 | ​ | $ | (1,354) | ​ | $ | — | ​ | $ | — | ​ | $ | 38,199 | ​ | $ | (1,354)
​ (1) Comprised of FHLMC, FNMA and GNMA issued securities. (2) Comprised of SBA and CRE secured securities iss ued by FHLMC and FNMA. (3) Comprised of CRE secured securities issued by FHLMC and FNMA. (4) Comprised of FNMA issued securities. (5) Comprised of FHLMC and FNMA issued securities. (6) Comprised of SBA 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 -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + 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