Pay vs Performance Disclosure - USD ($)
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12 Months Ended |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
| Pay vs Performance Disclosure |
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| Pay vs Performance Disclosure, Table |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Value of | | | | | | | | | | | | | | | | | | | | | Initial Fixed | | | | | | | | | | | | | | | | | Average | | | | $100 | | | | | Summary | | | | Summary | | | | Summary | | | | Summary | | Average | | Investment | | | | | Compensation | | Compensation | | Compensation | | Compensation | | Compensation | | Compensation | | Compensation | | Compensation | | Based on | | | | | Table | | Actually | | Table | | Actually | | Table | | Actually | | Table | | Actually | | Total | | | | | Total for | | Paid to | | Total for | | Paid to | | Total for | | Paid to | | Total for | | Paid to | | Shareholder | | | | | PEO #1 | | PEO #1 | | PEO #2 | | PEO #2 | | PEO #3 | | PEO #3 | | Non-PEO | | Non-PEO | | Return | | | Year | | ($)(1) | | ($)(2) | | ($)(1) | | ($)(2) | | ($)(1) | | ($)(1) | | NEOs ($)(1) | | NEOs ($)(2) | | ($)(3) | | Net Income ($) | 2026 | | 527,653 | | 507,213 | | — | | — | | — | | — | | 426,152 | | 424,942 | | 11.20 | | (4,341,000) | 2025 | | 1,481,716 | | 1,609,280 | | 458,033 | | 483,033 | | — | | — | | 442,332 | | 459,921 | | (17.3) | | 4,903,000 | 2024 | | — | | — | | 403,949 | | 382,111 | | 264,775 | | 264,775 | | 380,390 | | 362,957 | | (22.0) | | 3,799,000 |
| (1) | During the year ended March 31, 2026, B. Nicole Sherman served as our PEO (PEO #1). During the year ended March 31, 2025, B. Nicole Sherman (PEO #1) and Daniel D. Cox (PEO #2) each served as our principal executive officer (“PEO”). During the year ended March 31, 2024, Daniel D. Cox (PEO #2) and Kevin J. Lycklama (PEO #3) each served as our PEO. The non-PEO named executive officers (non-PEO NEOs) for 2026 and 2025 are Daniel D. Cox and C. Evan Sowers, and for 2024 are C. Evan Sowers and David Lam. |
| (2) | The amounts shown for Compensation Actually Paid have been calculated in accordance with Item 402(v) of Regulation S-K and do not reflect compensation actually earned, realized, or received by Riverview’s NEOs. These amounts reflect the Summary Compensation Table totals with certain adjustments. Adjustments for 2026 are as follows: |
| | | | | | | | | | Average of | | | | | | Non-PEO | | | | PEO #1 ($) | | NEOs ($) | | Summary Compensation Table total | | 527,653 | | 426,152 | | Deduction for amounts reported under the Stock Awards column in the Summary Compensation Table | | 42,498 | | 34,250 | | Year-end value of equity awards granted during year that remain unvested as of year‑end | | 45,386 | | 36,578 | | Year over year change in fair value of outstanding and unvested equity awards | | (23,051) | | (2,619) | | Year over year change in fair value of equity awards granted in prior years and vested in the year | | (277) | | (919) | | Compensation Actually Paid | | 507,213 | | 424,942 | |
| (3) | Total Shareholder Return assumes $100 invested on March 31, 2023, with all dividends reinvested. |
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| Named Executive Officers, Footnote |
| (1) | During the year ended March 31, 2026, B. Nicole Sherman served as our PEO (PEO #1). During the year ended March 31, 2025, B. Nicole Sherman (PEO #1) and Daniel D. Cox (PEO #2) each served as our principal executive officer (“PEO”). During the year ended March 31, 2024, Daniel D. Cox (PEO #2) and Kevin J. Lycklama (PEO #3) each served as our PEO. The non-PEO named executive officers (non-PEO NEOs) for 2026 and 2025 are Daniel D. Cox and C. Evan Sowers, and for 2024 are C. Evan Sowers and David Lam. |
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| Adjustment To PEO Compensation, Footnote |
| (2) | The amounts shown for Compensation Actually Paid have been calculated in accordance with Item 402(v) of Regulation S-K and do not reflect compensation actually earned, realized, or received by Riverview’s NEOs. These amounts reflect the Summary Compensation Table totals with certain adjustments. Adjustments for 2026 are as follows: |
| | | | | | | | | | Average of | | | | | | Non-PEO | | | | PEO #1 ($) | | NEOs ($) | | Summary Compensation Table total | | 527,653 | | 426,152 | | Deduction for amounts reported under the Stock Awards column in the Summary Compensation Table | | 42,498 | | 34,250 | | Year-end value of equity awards granted during year that remain unvested as of year‑end | | 45,386 | | 36,578 | | Year over year change in fair value of outstanding and unvested equity awards | | (23,051) | | (2,619) | | Year over year change in fair value of equity awards granted in prior years and vested in the year | | (277) | | (919) | | Compensation Actually Paid | | 507,213 | | 424,942 | |
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| Non-PEO NEO Average Total Compensation Amount |
$ 426,152
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$ 442,332
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$ 380,390
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| Non-PEO NEO Average Compensation Actually Paid Amount |
$ 424,942
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459,921
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362,957
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| Adjustment to Non-PEO NEO Compensation Footnote |
| (2) | The amounts shown for Compensation Actually Paid have been calculated in accordance with Item 402(v) of Regulation S-K and do not reflect compensation actually earned, realized, or received by Riverview’s NEOs. These amounts reflect the Summary Compensation Table totals with certain adjustments. Adjustments for 2026 are as follows: |
| | | | | | | | | | Average of | | | | | | Non-PEO | | | | PEO #1 ($) | | NEOs ($) | | Summary Compensation Table total | | 527,653 | | 426,152 | | Deduction for amounts reported under the Stock Awards column in the Summary Compensation Table | | 42,498 | | 34,250 | | Year-end value of equity awards granted during year that remain unvested as of year‑end | | 45,386 | | 36,578 | | Year over year change in fair value of outstanding and unvested equity awards | | (23,051) | | (2,619) | | Year over year change in fair value of equity awards granted in prior years and vested in the year | | (277) | | (919) | | Compensation Actually Paid | | 507,213 | | 424,942 | |
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| Compensation Actually Paid vs. Total Shareholder Return |

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| Compensation Actually Paid vs. Net Income |

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| Total Shareholder Return Amount |
$ 11.2
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(17.3)
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(22)
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| Net Income (Loss) |
$ (4,341,000)
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4,903,000
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3,799,000
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| PEO Name |
B. Nicole Sherman
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| B. Nicole Sherman (PEO #1) |
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| Pay vs Performance Disclosure |
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| PEO Total Compensation Amount |
$ 527,653
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1,481,716
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| PEO Actually Paid Compensation Amount |
507,213
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1,609,280
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| Daniel D. Cox (PEO #2) |
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| Pay vs Performance Disclosure |
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| PEO Total Compensation Amount |
426,152
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458,033
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403,949
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| PEO Actually Paid Compensation Amount |
424,942
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$ 483,033
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382,111
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| Kevin J. Lycklama (PEO #3) |
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| Pay vs Performance Disclosure |
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| PEO Total Compensation Amount |
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264,775
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| PEO Actually Paid Compensation Amount |
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$ 264,775
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| PEO | B. Nicole Sherman (PEO #1) | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |
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| Pay vs Performance Disclosure |
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| Adjustment to Compensation, Amount |
(42,498)
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| PEO | B. Nicole Sherman (PEO #1) | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |
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| Pay vs Performance Disclosure |
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| Adjustment to Compensation, Amount |
45,386
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| PEO | B. Nicole Sherman (PEO #1) | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |
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| Pay vs Performance Disclosure |
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| Adjustment to Compensation, Amount |
(23,051)
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| PEO | B. Nicole Sherman (PEO #1) | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |
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| Pay vs Performance Disclosure |
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| Adjustment to Compensation, Amount |
(277)
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| PEO | Daniel D. Cox (PEO #2) | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |
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| Pay vs Performance Disclosure |
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| Adjustment to Compensation, Amount |
(34,250)
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| PEO | Daniel D. Cox (PEO #2) | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |
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| Pay vs Performance Disclosure |
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| Adjustment to Compensation, Amount |
36,578
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| PEO | Daniel D. Cox (PEO #2) | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |
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| Pay vs Performance Disclosure |
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| Adjustment to Compensation, Amount |
(2,619)
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| PEO | Daniel D. Cox (PEO #2) | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |
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| Pay vs Performance Disclosure |
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| Adjustment to Compensation, Amount |
$ (919)
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