{"cik":"0000893062","entityType":"other","sic":"","sicDescription":"","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":0,"name":"GOVERNMENT SECURITIES INC FD GNMA SER 1Y DEFINED ASSET FUNDS","tickers":[],"exchanges":[],"ein":"000000000","lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"NY","stateOfIncorporationDescription":"NY","addresses":{"mailing":{"street1":"NULL","street2":null,"city":null,"stateOrCountry":null,"zipCode":null,"stateOrCountryDescription":null,"isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"450 LEXINGTON AVENUE","street2":"C/O DAVIS POLK & WARDWELL","city":"NEW YORK","stateOrCountry":"NY","zipCode":"10017","stateOrCountryDescription":"NY","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"2124504540","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0000934850-04-000522","0000934850-04-000138","0000934850-03-000194","0000934850-02-000768","0000934850-01-001255","0000934850-01-001091","0000934850-01-001042","0001005477-00-006097","0001005477-00-005903","0000934850-00-000433","0000950112-99-001265","0000950112-99-001263","0000950112-99-001229","0000934850-99-001150","0000934850-99-000025","0000950112-98-001203","0000950112-98-001140","0000934850-98-002907","0000934850-98-001510","0000934850-98-000280","0000950112-97-001111","0000950112-97-001056","0000934850-97-000061","0000950112-96-003046","0000950112-96-002839","0000934850-96-000326","0000892916-95-000102","0000892916-95-000099","0000892916-95-000097","0000934850-95-003492"],"filingDate":["2004-11-17","2004-03-31","2003-03-27","2002-03-21","2001-04-03","2001-03-22","2001-03-22","2000-08-25","2000-08-16","2000-03-10","1999-09-27","1999-09-27","1999-09-15","1999-03-16","1999-01-22","1998-09-28","1998-09-16","1998-08-28","1998-03-10","1998-02-27","1997-08-18","1997-08-06","1997-02-13","1996-08-23","1996-08-14","1996-07-17","1995-06-16","1995-06-15","1995-06-14","1995-02-28"],"reportDate":["2004-09-30","2003-12-31","2002-12-31","2001-12-31","","2000-12-31","","","","1999-12-31","","","","1998-12-31","","","","","1997-12-31","1997-12-31","","","1996-12-31","","","1996-05-31","","","",""],"acceptanceDateTime":["2004-11-17T14:44:44.000Z","2004-03-31T19:11:20.000Z","2003-03-27T22:08:03.000Z","2002-03-21T05:00:00.000Z","2001-04-03T04:00:00.000Z","2001-03-22T05:00:00.000Z","2001-03-22T05:00:00.000Z","2000-08-25T04:00:00.000Z","2000-08-16T04:00:00.000Z","2000-03-10T05:00:00.000Z","1999-09-27T04:00:00.000Z","1999-09-27T04:00:00.000Z","1999-09-15T04:00:00.000Z","1999-03-16T05:00:00.000Z","1999-01-22T05:00:00.000Z","1998-09-28T04:00:00.000Z","1998-09-16T04:00:00.000Z","1998-08-28T04:00:00.000Z","1998-03-10T05:00:00.000Z","1998-02-27T05:00:00.000Z","1997-08-18T04:00:00.000Z","1997-08-06T04:00:00.000Z","1997-02-13T05:00:00.000Z","1996-08-23T04:00:00.000Z","1996-08-14T04:00:00.000Z","1996-07-17T04:00:00.000Z","1995-06-16T04:00:00.000Z","1995-06-15T04:00:00.000Z","1995-06-14T04:00:00.000Z","1995-02-28T05:00:00.000Z"],"act":["33","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""],"form":["24F-2NT","24F-2NT","24F-2NT","24F-2NT","497","24F-2NT","497","497","485BPOS","24F-2NT","497","497","485BPOS","24F-2NT","497","497","485BPOS","497","24F-2NT/A","24F-2NT","497","485BPOS","24F-2NT","497","485BPOS","24F-2NT","497","497","487","S-6EL24"],"fileNumber":["033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873","033-57873"],"filmNumber":["041150951","04705236","03621713","02580658","1593484","1576153","1575644","709958","704122","566003","99717593","99717567","99712149","99565801","99511011","98716181","98710434","98700403","98562152","98553667","97665721","97652561","97530366","96619851","96614112","96595698","95547445","95547195","95546884","95516194"],"items":["","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""],"core_type":["24F-2NT","24F-2NT","24F-2NT","24F-2NT","497","24F-2NT","497","497","485BPOS","24F-2NT","497","497","485BPOS","24F-2NT","497","497","485BPOS","497","24F-2NT/A","24F-2NT","497","485BPOS","24F-2NT","497","485BPOS","24F-2NT","497","497","487","S-6EL24"],"size":[5725,5448,5453,5400,123712,5421,123818,60845,76018,5364,62067,62067,76215,5189,394032,122157,142793,60627,5369,5293,142408,162791,6987,91830,113108,6997,20018,94971,167647,18934],"isXBRL":[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":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"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],"primaryDocument":["gsif_gnma1y.txt","cik893062.txt","ml028.txt","a018.txt","0001.txt","0001.txt","0001.txt","0001.txt","0001.txt","","","","","","","","","","","","","","","","","","","","",""],"primaryDocDescription":["","","","","","","","DAF-GSIF GNMA SERIES 1Y","DAF-GSIF GNMA SERIES 1Y","","DAF-GSIF GNMA SERIES 1Y","DAF-GSIF GNMA SERIES 1Y","DAF-GSIF GNMA SERIES 1Y","","","DAF-GSIF GNMA SERIES 1Y         GSIF-B","DAF-GSIF GNMA SERIES 1Y             GSIF-B","","","","DAF-GSIF GNMA SERIES 1Y         GSIF-B","DAF-GSIF GNMA SERIES 1Y             GSIF-B","","DAF-GSIF GNMA SERIES 1Y","DAF-GSIF GNMA SERIES 1Y","","GSIF GNMA-1Y DAF 6/14/95","GSIF GNMA-1Y DAF 6/14/95","GSIF GNMA-1Y DAF 6/14/95",""]},"files":[]}}