{"cik":"0001854461","entityType":"operating","sic":"6770","sicDescription":"Blank Checks","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":1,"name":"Mount Rainier Acquisition Corp.","tickers":[],"exchanges":[],"ein":"000000000","lei":null,"description":"","website":"","investorWebsite":"","category":"<br>Emerging growth company","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":"256 WEST 38TH STREET 15TH FLOOR","street2":null,"city":"NEW YORK","stateOrCountry":"NY","zipCode":"10018","stateOrCountryDescription":"NY","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"256 WEST 38TH STREET 15TH FLOOR","street2":null,"city":"NEW YORK","stateOrCountry":"NY","zipCode":"10018","stateOrCountryDescription":"NY","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"12127854680","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001104659-23-026770","0001354457-23-000120","0001104659-23-026110","0001410578-23-000158","0001062993-23-003251","0001104659-23-018511","0001104659-23-010473","0001104659-23-008635","0001104659-23-007582","0000902664-23-000644","0001104659-23-000978","0001104659-23-000970","0001104659-22-130688","0001104659-22-130687","0001104659-22-129220","0001104659-22-129212","0001104659-22-129196","0001104659-22-129195","0001104659-22-125944","0001104659-22-125898","0001104659-22-124615","0001104659-22-123004","0001104659-22-121755","0001104659-22-121277","0001410578-22-002961","0001104659-22-112954","0001104659-22-112014","0001104659-22-112010","0001104659-22-110294","0001104659-22-099244","0001104659-22-097067","0001104659-22-094079","0001410578-22-002302","0001104659-22-087880","0001104659-22-077714","0001104659-22-077308","0001104659-22-076385","0001104659-22-072987","0001104659-22-072977","0001410578-22-001471","0001104659-22-042387","0001104659-22-042212","0001104659-22-037083","0001104659-22-037074","0001104659-22-037064","0001104659-22-037061","0001104659-22-025765","0000902664-22-001251","0001104659-21-154722","0001104659-21-138089","0001104659-21-126756","0000902664-21-004518","0001104659-21-126298","0001104659-21-124932","0001461790-21-000057","0001104659-21-124791","0001104659-21-124790","0001209191-21-060015","0001062993-21-009338","0001104659-21-124276","0001461790-21-000053","0001104659-21-122704","9999999995-21-003760","0001104659-21-122686","0001104659-21-122685","0001104659-21-122683","0001104659-21-122681","0001104659-21-122680","0001104659-21-122679","0001209191-21-059019","0001354457-21-001116","0001104659-21-122402","0001104659-21-121919","0001104659-21-121916","0001104659-21-121627","0001104659-21-119839","0001104659-21-114733","0001104659-21-108236","0001104659-21-108234","0000000000-21-007546","0001104659-21-077138","0001104659-21-077120","0000000000-21-006217","0001104659-21-053115"],"filingDate":["2023-02-28","2023-02-28","2023-02-27","2023-02-24","2023-02-14","2023-02-10","2023-02-03","2023-01-31","2023-01-27","2023-01-25","2023-01-04","2023-01-04","2022-12-29","2022-12-29","2022-12-22","2022-12-22","2022-12-22","2022-12-22","2022-12-09","2022-12-09","2022-12-05","2022-11-30","2022-11-23","2022-11-22","2022-11-04","2022-10-31","2022-10-27","2022-10-27","2022-10-20","2022-09-12","2022-09-01","2022-08-24","2022-08-11","2022-08-09","2022-07-06","2022-07-05","2022-07-01","2022-06-21","2022-06-21","2022-05-13","2022-04-05","2022-04-04","2022-03-23","2022-03-23","2022-03-23","2022-03-23","2022-02-23","2022-02-09","2021-12-30","2021-11-12","2021-10-15","2021-10-15","2021-10-14","2021-10-12","2021-10-08","2021-10-08","2021-10-08","2021-10-08","2021-10-08","2021-10-08","2021-10-05","2021-10-05","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-01","2021-10-01","2021-10-01","2021-09-27","2021-09-10","2021-08-20","2021-08-20","2021-06-21","2021-06-04","2021-06-04","2021-05-17","2021-04-21"],"reportDate":["","","2023-02-27","2022-12-31","","2023-02-27","","2023-01-31","2023-01-26","","","2023-01-03","","","","","","2022-12-21","","","2022-12-21","","2022-11-23","","2022-09-30","","","2022-10-26","","","","","2022-06-30","","","","","","2022-06-19","2022-03-31","","","","","","2022-03-23","2021-12-31","","2021-12-30","2021-09-30","","","2021-10-07","2021-10-07","","2021-10-07","2021-10-07","2021-10-07","","2021-10-04","","","","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","2021-10-04","","","","","","","","","","","","","",""],"acceptanceDateTime":["2023-02-28T21:42:38.000Z","2023-02-28T21:23:26.000Z","2023-02-27T22:19:01.000Z","2023-02-24T21:23:45.000Z","2023-02-14T17:07:12.000Z","2023-02-10T22:18:29.000Z","2023-02-03T21:02:50.000Z","2023-01-31T22:31:13.000Z","2023-01-27T22:02:01.000Z","2023-01-25T15:30:39.000Z","2023-01-04T22:30:58.000Z","2023-01-04T22:22:47.000Z","2022-12-29T12:51:08.000Z","2022-12-29T12:49:06.000Z","2022-12-21T23:53:18.000Z","2022-12-21T23:47:54.000Z","2022-12-21T23:26:49.000Z","2022-12-21T23:26:16.000Z","2022-12-09T22:15:49.000Z","2022-12-09T21:39:55.000Z","2022-12-05T22:25:37.000Z","2022-11-30T12:00:59.000Z","2022-11-23T21:16:12.000Z","2022-11-22T21:54:02.000Z","2022-11-04T20:36:18.000Z","2022-10-31T20:05:16.000Z","2022-10-27T20:16:17.000Z","2022-10-27T20:15:20.000Z","2022-10-20T20:10:48.000Z","2022-09-12T20:10:57.000Z","2022-09-01T20:51:32.000Z","2022-08-24T21:29:44.000Z","2022-08-11T21:14:02.000Z","2022-08-09T20:01:21.000Z","2022-07-06T20:30:07.000Z","2022-07-05T20:06:04.000Z","2022-06-30T21:50:58.000Z","2022-06-21T20:32:03.000Z","2022-06-21T20:30:38.000Z","2022-05-13T20:17:03.000Z","2022-04-04T22:54:11.000Z","2022-04-04T20:13:51.000Z","2022-03-23T21:16:17.000Z","2022-03-23T21:15:46.000Z","2022-03-23T20:31:28.000Z","2022-03-23T20:30:53.000Z","2022-02-23T00:07:39.000Z","2022-02-09T13:17:26.000Z","2021-12-30T21:30:23.000Z","2021-11-12T21:16:46.000Z","2021-10-15T20:16:00.000Z","2021-10-15T12:30:31.000Z","2021-10-14T21:18:56.000Z","2021-10-12T10:19:57.000Z","2021-10-12T13:19:45.000Z","2021-10-09T01:14:16.000Z","2021-10-09T01:13:11.000Z","2021-10-08T17:44:20.000Z","2021-10-08T10:03:37.000Z","2021-10-07T23:16:40.000Z","2021-10-05T21:29:36.000Z","2021-10-05T10:02:14.000Z","2021-10-05T04:15:13.000Z","2021-10-05T01:16:01.000Z","2021-10-05T01:14:43.000Z","2021-10-05T01:12:58.000Z","2021-10-05T01:12:02.000Z","2021-10-05T01:11:00.000Z","2021-10-05T01:09:27.000Z","2021-10-04T20:41:23.000Z","2021-10-04T20:19:12.000Z","2021-10-04T16:18:03.000Z","2021-10-01T19:14:17.000Z","2021-10-01T19:12:59.000Z","2021-10-01T12:08:15.000Z","2021-09-27T21:24:03.000Z","2021-09-10T21:04:12.000Z","2021-08-20T21:19:00.000Z","2021-08-20T21:18:33.000Z","2021-06-21T13:30:04.000Z","2021-06-04T21:06:52.000Z","2021-06-04T21:01:10.000Z","2021-05-17T17:30:04.000Z","2021-04-21T19:53:48.000Z"],"act":["34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","","34","","","","34","34","34","33","33","","","","","","","","34","34","","","33","33","33","","33","","","33","","33"],"form":["15-12G","25-NSE","8-K","10-K","SC 13G/A","DEF 14A","425","PRE 14A","8-K","SC 13G/A","425","8-K","425","DEFA14A","425","DEFA14A","425","8-K","425","DEFM14A","DEF 14A","425","PRE 14A","425","10-Q","425","425","8-K","425","425","425","425","10-Q","425","425","425","425","425","8-K","10-Q","425","425","425","425","425","8-K","10-K","SC 13G/A","8-K","10-Q","SC 13D","SC 13G","8-K","4","SC 13G/A","4","4","4","SC 13G","8-K","SC 13G","424B4","EFFECT","3","3","3","3","3","3","3","CERT","8-A12B","CORRESP","CORRESP","S-1/A","S-1/A","S-1/A","CORRESP","S-1/A","UPLOAD","CORRESP","S-1","UPLOAD","DRS"],"fileNumber":["001-40870","333-256816","001-40870","001-40870","005-92904","001-40870","001-40870","001-40870","001-40870","005-92904","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","001-40870","005-92904","001-40870","001-40870","005-92904","005-92904","001-40870","","005-92904","","","","005-92904","001-40870","005-92904","333-256816","333-256816","","","","","","","","001-40870","001-40870","","","333-256816","333-256816","333-256816","","333-256816","","","333-256816","","377-04705"],"filmNumber":["23686312","23685820","23676653","23667792","23625286","23613453","23585691","23573674","23564059","23550320","23508211","23508037","221496341","221496339","221479458","221479440","221479415","221479414","221455627","221455317","221445910","221434286","221416541","221411160","221362782","221345992","221337506","221337479","221321340","221238670","221221506","221192399","221156912","221148072","221069102","221064854","221058969","221028551","221028504","22922948","22804558","22802322","22763906","22763901","22763579","22763567","22660160","22603888","211533178","211403729","211326241","211324903","211324030","","211317224","","","","211313799","211313448","211307886","211305079","211305057","","","","","","","","211302987","211301608","","","211297155","211282799","211247727","","211194645","","","21997213","","21841385"],"items":["","","5.07","","","","","","8.01,9.01","","","1.01,5.07,8.01,9.01","","","","","","5.03,5.07,8.01,9.01","","","","","","","","","","1.01,2.03,9.01","","","","","","","","","","","1.01,9.01","","","","","","","1.01,7.01,9.01","","","8.01,9.01","","","","8.01,9.01","","","","","","","1.01,3.02,5.03,8.01,9.01","","","S-1,,2021-10-04 16:30:00","","","","","","","","","","","","","","","","","","","","",""],"core_type":["15-12G","25-NSE","XBRL","XBRL","SC 13G/A","DEF 14A","425","PRE 14A","XBRL","SC 13G/A","425","XBRL","425","DEFA14A","425","DEFA14A","425","XBRL","425","DEFM14A","DEF 14A","425","PRE 14A","425","XBRL","425","425","XBRL","425","425","425","425","XBRL","425","425","425","425","425","XBRL","XBRL","425","425","425","425","425","XBRL","XBRL","SC 13G/A","XBRL","XBRL","SC 13D","SC 13G","8-K","4","SC 13G/A","4","4","4","SC 13G","8-K","SC 13G","424B4","EFFECT","3","3","3","3","3","3","3","CERT","8-A12B","CORRESP","CORRESP","S-1/A","S-1/A","S-1/A","CORRESP","S-1/A","LETTER","CORRESP","S-1","LETTER","DRS"],"size":[14107,2922,283438,4271515,61615,201650,39820,201258,309139,52316,91554,341451,61706,68266,83633,88727,63401,314024,27247,14453244,200828,3789948,202184,25729,3867236,21017,90101,339671,27623,19065,33217,21292,3643640,17448,17667,19330,18797,72634,318432,3332971,55787,4847002,7234160,33945,5714017,6221140,3546988,50147,276301,2392120,334862,61209,112251,10570,106154,7634,7603,5771,60638,947486,106007,1036357,1664,4282,3496,3463,3469,3454,3557,3990,136633,15941,6747,8703,1789502,2103798,55511,21384,2357830,45888,56308,1294175,55275,1123662],"isXBRL":[0,0,1,1,0,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0,0,0,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isInlineXBRL":[0,0,1,1,0,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0,0,0,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isXBRLNumeric":[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"primaryDocument":["tm238089d1_15-12g.htm","xslF25X02/primary_doc.xml","tm237975d1_8k.htm","rner-20221231x10k.htm","formsc13ga.htm","tm234892-2_def14a.htm","tm235404d2_425.htm","tm234892-1_pre14a.htm","tm234589d1_8k.htm","p23-0219sc13ga.htm","tm231666d1_8k.htm","tm231666d1_8k.htm","tm2223104d20_425.htm","tm2233568d1_defa14a.htm","tm2232989-4_425.htm","tm2232989-1_defa14a.htm","tm2232989d2_8k.htm","tm2232989d2_8k.htm","tm2223104d19_425.htm","tm2232327-1_defm14a.htm","tm2230917d2_def14a.htm","tm2231542d1_425.htm","tm2230917d1_pre14a.htm","tm2231215d1_425.htm","rner-20220930x10q.htm","tm2229271d1_425.htm","tm2229070d1_8k.htm","tm2229070d1_8k.htm","tm2223104d11_425.htm","tm2223104d8_425.htm","tm2223104d7_425.htm","tm2223104d6_425.htm","rner-20220630x10q.htm","tm2222956-1_425.htm","tm2220535d1_425.htm","tm2220375d1_425.htm","tm2220220d1_425.htm","tm2218413d1_8k.htm","tm2218413d1_8k.htm","rner-20220331x10q.htm","tm2211642d1_425.htm","tm2211508-1_425.htm","tm2210232d1_425.htm","tm2210232d2_425.htm","tm2210221d1_8k.htm","tm2210221d1_8k.htm","rner-20211231x10k.htm","p22-0690sc13ga.htm","tm2136593d1_8k.htm","rner-20210930x10q.htm","tm2130089d1_sc13d.htm","p21-2307sc13g.htm","tm2130022d1_8k.htm","xslF345X03/tm2129559-3_4seq1.xml","RNERU_13GA_20211008.htm","xslF345X03/tm2129559-2_4seq1.xml","xslF345X03/tm2129559-1_4seq1.xml","xslF345X03/doc4.xml","formsc13g.htm","tm2129494d1_8k.htm","13G_RNERU_20211005.htm","tm2112598d12_424b4.htm","xslEFFECTX01/primary_doc.xml","xslF345X02/tm2129120d6_3.xml","xslF345X02/tm2129120d5_3.xml","xslF345X02/tm2129120d4_3.xml","xslF345X02/tm2129120d3_3.xml","xslF345X02/tm2129120d2_3.xml","xslF345X02/tm2129120d1_3.xml","xslF345X02/doc3.xml","8A_Cert_RNER.pdf","tm2112598d13_8a12b.htm","filename1.htm","filename1.htm","tm2112598d9_s1-a.htm","tm2112598d8_s1-a.htm","tm2112598d7_s1-a.htm","filename1.htm","tm2112598d5_s-1a.htm","filename1.pdf","filename1.htm","tm2112598d3_s-1.htm","filename1.pdf","filename1.htm"],"primaryDocDescription":["15-12G","","FORM 8-K","10-K","FORM SC 13G/A","DEF 14A","425","PRE 14A","FORM 8-K","MOUNT RAINIER ACQUISITION CORP.","425","FORM 8-K","425","DEFA14A","425","DEFA14A","425","FORM 8-K","425","DEFM14A","DEF 14A","425","PRE 14A","425","10-Q","425","425","FORM 8-K","425","425","425","425","10-Q","425","425","425","425","425","FORM 8-K","10-Q","425","425","425","425","425","FORM 8-K","FORM 10-K","MOUNT RAINIER ACQUISITION CORP.","FORM 8-K","FORM 10-Q","SC 13D","MOUNT RAINIER ACQUISITION CORP.","FORM 8-K","OWNERSHIP DOCUMENT","","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","FORM 4 SUBMISSION","FORM SC 13G","FORM 8-K","","424B4","","FORM 3","FORM 3","FORM 3","FORM 3","FORM 3","FORM 3","FORM 3 SUBMISSION","","8-A12B","","","FORM S-1/A","FORM S-1/A","FORM S-1/A","","FORM S-1/A","","","FORM S-1","",""]},"files":[]}}