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REAL ESTATE OWNED (Tables) | 12 Months Ended
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Mar. 31, 2018
Real Estate Owned, Disclosure of Detailed Components [Abstract] |
Schedule of summary of the activity in REO |
|  | Year Ended March 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Balance at beginning of year, net |  | $ | 298 |  |  | $ | 595 |  |  | $ | 1,603 |
Additions |  |  | - |  |  |  | - |  |  |  | 298 |
Dispositions |  |  | - |  |  |  | (267 | ) |  |  | (937 | )
Writedowns |  |  | - |  |  |  | (30 | ) |  |  | (369 | )
Balance at end of year, net |  | $ | 298 |  |  | $ | 298 |  |  | $ | 595 |

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- Definition Tabular disclosure of activity in Real Estate Owned (REO) including additions, dispositions, and writedowns. + References No definition available. + Details
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Namespace Prefix: | rvsb_
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Balance Type: | na
Period Type: | duration

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