{"cik":1041368,"company":{"entity_status":null,"filings":[{"accession":"0002050978-26-000008","document":"xslF345X06/form4-09172026_040902.xml","filed":"2026-09-17","form":"4","items":"","report_date":"2026-09-17"},{"accession":"0001833500-26-000002","document":"xslF345X06/form4-09172026_060905.xml","filed":"2026-09-17","form":"4","items":"","report_date":"2026-09-16"},{"accession":"0001508267-26-000004","document":"xslF345X06/form4-09172026_020905.xml","filed":"2026-09-17","form":"4","items":"","report_date":"2026-09-15"},{"accession":"0001322325-26-000004","document":"xslF345X06/form4-09172026_050901.xml","filed":"2026-09-17","form":"4","items":"","report_date":"2026-09-17"},{"accession":"0002128593-26-000004","document":"xslF345X06/form4-09152026_020923.xml","filed":"2026-09-15","form":"4","items":"","report_date":"2026-09-14"},{"accession":"0000939057-26-000233","document":"rvsb-20260904.htm","filed":"2026-09-08","form":"8-K/A","items":"7.01,9.01","report_date":"2026-09-04"},{"accession":"0000939057-26-000227","document":"rvsb-20260904.htm","filed":"2026-09-04","form":"8-K","items":"7.01,9.01","report_date":"2026-09-04"},{"accession":"0000939057-26-000222","document":"rvsb-20260827.htm","filed":"2026-09-02","form":"8-K","items":"5.03,5.07,7.01,9.01","report_date":"2026-08-27"},{"accession":"0000939057-26-000211","document":"riv8k82026.htm","filed":"2026-08-27","form":"8-K","items":"8.01,9.01","report_date":"2026-08-20"},{"accession":"0001991703-26-000004","document":"xslF345X06/form4-08242026_040836.xml","filed":"2026-08-24","form":"4","items":"","report_date":"2026-08-20"},{"accession":"0001629292-26-000002","document":"xslF345X06/form4-08202026_020830.xml","filed":"2026-08-20","form":"4","items":"","report_date":"2026-08-18"},{"accession":"0001713974-26-000002","document":"xslF345X06/form4-08182026_070851.xml","filed":"2026-08-18","form":"4","items":"","report_date":"2026-08-17"},{"accession":"0001104659-26-096729","document":"rvsb-20260630x10q.htm","filed":"2026-08-14","form":"10-Q","items":"","report_date":"2026-06-30"},{"accession":"0000939057-26-000171","document":"riv8k81026.htm","filed":"2026-08-10","form":"8-K","items":"5.02,9.01","report_date":"2026-08-10"},{"accession":"0000939057-26-000147","document":"riv8k72826.htm","filed":"2026-07-29","form":"8-K","items":"2.02,9.01","report_date":"2026-07-28"},{"accession":"0001041368-26-000012","document":"rvsb-20260331xdef14a.htm","filed":"2026-07-17","form":"DEF 14A","items":"","report_date":"2026-03-31"},{"accession":"0001041368-26-000007","document":"rvsb-20260331x10k.htm","filed":"2026-06-12","form":"10-K","items":"","report_date":"2026-03-31"},{"accession":"0000939057-26-000096","document":"riv8k42826.htm","filed":"2026-04-30","form":"8-K","items":"2.02,9.01","report_date":"2026-04-28"},{"accession":"0000939057-26-000089","document":"8k22326.htm","filed":"2026-04-24","form":"8-K","items":"5.02","report_date":"2026-04-23"},{"accession":"0000939057-26-000075","document":"8k4226.htm","filed":"2026-04-02","form":"8-K","items":"5.02,5.03,9.01","report_date":"2026-03-30"},{"accession":"0000939057-26-000065","document":"riv8k32526.htm","filed":"2026-03-26","form":"8-K","items":"8.01,9.01","report_date":"2026-03-25"},{"accession":"0001041368-26-000003","document":"rvsb-20251231x10q.htm","filed":"2026-02-13","form":"10-Q","items":"","report_date":"2025-12-31"},{"accession":"0000939057-26-000026","document":"riv8k12726.htm","filed":"2026-01-29","form":"8-K","items":"2.02,9.01","report_date":"2026-01-27"},{"accession":"0000939057-26-000023","document":"8k12826.htm","filed":"2026-01-28","form":"8-K","items":"8.01,9.01","report_date":"2026-01-22"},{"accession":"0000939057-26-000008","document":"8k172026.htm","filed":"2026-01-07","form":"8-K","items":"4.01,9.01","report_date":"2026-01-01"},{"accession":"0001041368-25-000004","document":"rvsb-20250930x10q.htm","filed":"2025-11-07","form":"10-Q","items":"","report_date":"2025-09-30"},{"accession":"0000939057-25-000285","document":"riv8k102825.htm","filed":"2025-11-03","form":"8-K","items":"2.02,9.01","report_date":"2025-10-28"},{"accession":"0000939057-25-000252","document":"riv8k82825.htm","filed":"2025-09-04","form":"8-K","items":"5.07,7.01,9.01","report_date":"2025-08-28"},{"accession":"0000939057-25-000249","document":"riv8k9325.htm","filed":"2025-09-03","form":"8-K","items":"7.01,9.01","report_date":"2025-09-03"},{"accession":"0000939057-25-000203","document":"rvsb-20250630x10q.htm","filed":"2025-08-08","form":"10-Q","items":"","report_date":"2025-06-30"},{"accession":"0000939057-25-000191","document":"riv8k72925.htm","filed":"2025-08-04","form":"8-K","items":"2.02,9.01","report_date":"2025-07-29"},{"accession":"0000939057-25-000168","document":"rvsb-20250718xdef14a.htm","filed":"2025-07-18","form":"DEF 14A","items":"","report_date":"2025-07-18"},{"accession":"0000939057-25-000159","document":"rvsb-20250331x10k.htm","filed":"2025-06-12","form":"10-K","items":"","report_date":"2025-03-31"},{"accession":"0000939057-25-000105","document":"riv8ker42925.htm","filed":"2025-04-30","form":"8-K","items":"2.02,9.01","report_date":"2025-04-29"},{"accession":"0000939057-25-000103","document":"riv8k42925.htm","filed":"2025-04-30","form":"8-K","items":"8.01,9.01","report_date":"2025-04-29"},{"accession":"0000939057-25-000074","document":"riv8k31425.htm","filed":"2025-03-14","form":"8-K","items":"7.01,9.01","report_date":"2025-03-14"},{"accession":"0000939057-25-000048","document":"rvsb-20241231x10q.htm","filed":"2025-02-12","form":"10-Q","items":"","report_date":"2024-12-31"},{"accession":"0000939057-25-000023","document":"riv8k13025.htm","filed":"2025-02-04","form":"8-K","items":"2.02,9.01","report_date":"2025-01-30"},{"accession":"0000939057-25-000002","document":"8k11025.htm","filed":"2025-01-13","form":"8-K","items":"5.02,9.01","report_date":"2025-01-09"},{"accession":"0001013594-24-001000","document":"riverview13da1-112124.htm","filed":"2024-11-21","form":"SC 13D/A","items":"","report_date":""}],"former_names":[],"gleif_parents":[],"headquarters":[],"insiders":[{"accession":"0000939057-26-000239","acquired_disposed":"D","code":"F","date":"2026-09-24","derivative":false,"filed":"2026-09-25","following_shares":"3727.0","form":"4","owners":["Antich Breanne D"],"plan_10b5_1":false,"price":"45.1","security":"Common Stock, $.01 par value","shares":"66.0"},{"accession":"0000939057-26-000239","acquired_disposed":"D","code":"F","date":"2026-09-23","derivative":false,"filed":"2026-09-25","following_shares":"3793.0","form":"4","owners":["Antich Breanne D"],"plan_10b5_1":false,"price":"44.82","security":"Common Stock, $.01 par value","shares":"97.0"},{"accession":"0002050978-26-000008","acquired_disposed":"A","code":"P","date":"2026-09-17","derivative":false,"filed":"2026-09-17","following_shares":"8866.0","form":"4","owners":["Lightheart Charmaine"],"plan_10b5_1":false,"price":"5.68","security":"Common Stock","shares":"100.0"},{"accession":"0001322325-26-000004","acquired_disposed":"A","code":"P","date":"2026-09-17","derivative":false,"filed":"2026-09-17","following_shares":"166482.0","form":"4","owners":["Sherman Nicole"],"plan_10b5_1":false,"price":"5.69","security":"Common Stock","shares":"1765.0"},{"accession":"0001833500-26-000002","acquired_disposed":"A","code":"P","date":"2026-09-16","derivative":false,"filed":"2026-09-17","following_shares":"10900.0","form":"4","owners":["Graham Stacey"],"plan_10b5_1":false,"price":"5.7","security":"Common Stock","shares":"1750.0"},{"accession":"0001508267-26-000004","acquired_disposed":"A","code":"P","date":"2026-09-15","derivative":false,"filed":"2026-09-17","following_shares":"50000.0","form":"4","owners":["Wills Bessie Ross"],"plan_10b5_1":false,"price":"5.59","security":"Common Stock","shares":"2000.0"},{"accession":"0002128593-26-000004","acquired_disposed":"A","code":"P","date":"2026-09-14","derivative":false,"filed":"2026-09-15","following_shares":"13676.81","form":"4","owners":["Zamanizadeh Kourosh Nasser"],"plan_10b5_1":false,"price":"5.36","security":"Common Stock","shares":"1800.0"},{"accession":"0002128593-26-000004","acquired_disposed":"A","code":"P","date":"2026-09-14","derivative":false,"filed":"2026-09-15","following_shares":"15476.81","form":"4","owners":["Zamanizadeh Kourosh Nasser"],"plan_10b5_1":false,"price":"5.4","security":"Common Stock","shares":"1800.0"},{"accession":"0001991703-26-000004","acquired_disposed":"A","code":"P","date":"2026-08-20","derivative":false,"filed":"2026-08-24","following_shares":"48975.0","form":"4","owners":["Benke Robert"],"plan_10b5_1":false,"price":"5.05","security":"Common Stock","shares":"1000.0"},{"accession":"0001629292-26-000002","acquired_disposed":"A","code":"P","date":"2026-08-18","derivative":false,"filed":"2026-08-20","following_shares":"23421.0","form":"4","owners":["Carlson Bradley"],"plan_10b5_1":false,"price":"5.07","security":"Common Stock","shares":"1000.0"},{"accession":"0001713974-26-000002","acquired_disposed":"A","code":"P","date":"2026-08-17","derivative":false,"filed":"2026-08-18","following_shares":"76011.0","form":"4","owners":["Lam David"],"plan_10b5_1":false,"price":"5.17","security":"Common Stock","shares":"1000.0"},{"accession":"0002050978-26-000006","acquired_disposed":"A","code":"P","date":"2026-08-12","derivative":false,"filed":"2026-08-13","following_shares":"8766.0","form":"4","owners":["Lightheart Charmaine"],"plan_10b5_1":false,"price":"5.31","security":"Common Stock","shares":"250.0"},{"accession":"0002128637-26-000007","acquired_disposed":"A","code":"P","date":"2026-08-03","derivative":false,"filed":"2026-08-05","following_shares":"3000.0","form":"4","owners":["Girod Jon Louis"],"plan_10b5_1":false,"price":"5.41","security":"Common Stock","shares":"1000.0"},{"accession":"0002128637-26-000005","acquired_disposed":"A","code":"P","date":"2026-07-31","derivative":false,"filed":"2026-08-03","following_shares":"2000.0","form":"4","owners":["Girod Jon Louis"],"plan_10b5_1":false,"price":"5.24","security":"Common Stock","shares":"2000.0"},{"accession":"0001013594-26-000773","acquired_disposed":"D","code":"S","date":"2026-07-24","derivative":false,"filed":"2026-07-24","following_shares":"79388.0","form":"4","owners":["Nierenberg Investment Management Company, LLC"],"plan_10b5_1":false,"price":"5.29","security":"Common Stock","shares":"5000.0"},{"accession":"0001013594-26-000773","acquired_disposed":"D","code":"S","date":"2026-07-23","derivative":false,"filed":"2026-07-24","following_shares":"84388.0","form":"4","owners":["Nierenberg Investment Management Company, LLC"],"plan_10b5_1":false,"price":"5.27","security":"Common Stock","shares":"5000.0"},{"accession":"0001013594-26-000773","acquired_disposed":"D","code":"S","date":"2026-07-22","derivative":false,"filed":"2026-07-24","following_shares":"89388.0","form":"4","owners":["Nierenberg Investment Management Company, LLC"],"plan_10b5_1":false,"price":"5.25","security":"Common Stock","shares":"5000.0"}],"legal_name":null,"lei":null,"lei_status":null,"lei_updated_at":null,"names":[],"parent_exceptions":[],"parents":[],"wikidata_id":null},"research_built_at":"2026-10-23T06:11:20.354311+00:00","reviewed_events":[],"reviewed_events_coverage":"selective; not a complete event history; accounting series not reconciled","sources":[{"coverage":"8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer","id":"sec","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC submissions","retrieved_at":"2026-10-23T06:12:00.336203+00:00","status":"ok","url":"https://www.sec.gov/search-filings/edgar-application-programming-interfaces"},{"coverage":"1658 unambiguous CIK-linked entities; coverage is incomplete","id":"wikidata","license":"CC0-1.0","license_url":"https://www.wikidata.org/wiki/Wikidata:Licensing","name":"Wikidata structured data","retrieved_at":"2026-10-23T06:12:25.714432+00:00","status":"ok","url":"https://www.wikidata.org/"},{"coverage":"1197 checked identities; 0 unavailable records","id":"gleif","license":"CC0-1.0","license_url":"https://www.gleif.org/en/meta/lei-data-terms-of-use","name":"GLEIF legal entity reference data","retrieved_at":"2026-10-23T06:14:03.968440+00:00","status":"ok","url":"https://www.gleif.org/en/lei-data/gleif-api"},{"coverage":"4 selected series; gaps remain missing","id":"fed","license":"Public domain (selected government series)","license_url":"https://www.federalreserve.gov/disclaimer.htm","name":"Federal Reserve Board H.15","retrieved_at":"2026-10-23T06:27:13.562713+00:00","status":"ok","url":"https://www.federalreserve.gov/releases/h15/"},{"coverage":"9 selected series; gaps remain missing","id":"bls","license":"Public domain","license_url":"https://www.bls.gov/opub/copyright-information.htm","name":"Bureau of Labor Statistics","retrieved_at":"2026-10-23T06:27:14.878114+00:00","status":"ok","url":"https://www.bls.gov/developers/"},{"coverage":"2026 Q3: filings in this completed quarter; not a live transaction feed","id":"insiders","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC insider transactions","retrieved_at":"2026-10-23T06:12:21.860189+00:00","status":"ok","url":"https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets"}]}