{"cik":"0001096658","entityType":"operating","sic":"7389","sicDescription":"Services-Business Services, NEC","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":1,"name":"CENTRA SOFTWARE INC","tickers":[],"exchanges":[],"ein":"043268918","lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":"430 BEDFORD STREET","street2":null,"city":"LEXINGTON","stateOrCountry":"MA","zipCode":"02420","stateOrCountryDescription":"MA","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"430 BEDFORD STREET","street2":null,"city":"LEXINGTON","stateOrCountry":"MA","zipCode":"02420","stateOrCountryDescription":"MA","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"7818617000","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0000906344-06-000101","0000935836-06-000035","0001096658-06-000003","0001096658-06-000002","0001096658-06-000001","0001273583-06-000001","0001306858-06-000002","0001306858-06-000001","0001230141-06-000003","0001230141-06-000002","0001230141-06-000001","0001230143-06-000001","0001072613-06-000169","0001072613-06-000168","0001072613-06-000167","0001072613-06-000166","0001072613-06-000165","0001072613-06-000164","0001193125-06-014132","0000935836-05-000281","0001193125-05-222569","0001193125-05-222561","0001193125-05-221403","0001193125-05-218351","0001193125-05-218193","0001193125-05-215758","0001193125-05-215761","0001072613-05-002336","0001193125-05-198942","0001193125-05-197911","0001193125-05-197912","0001193125-05-197909","0001072613-05-002317","0001193125-05-197865","0001193125-05-162623","0001193125-05-156399","0001230143-05-000004","0001230143-05-000003","0001230143-05-000002","0001230143-05-000001","0000935836-05-000203","0000935836-05-000202","0000935836-05-000201","0001193125-05-145310","0001193125-05-129033","0001193125-05-127950","0001193125-05-122222","0000935836-05-000176","0001206637-05-000001","0000935836-05-000165","0001193125-05-100949","0001193125-05-095933","0001193125-05-095615","0001323375-05-000002","0000935836-05-000129","0001193125-05-072136","0000935836-05-000124","0001193125-05-067190","0001193125-05-052909","0001193125-05-044694","0001267550-05-000001","0001273583-05-000002","0001273583-05-000001","0001193125-05-033082","0000906344-05-000074","0001056568-05-000013","0001193125-05-017956","0000935836-05-000012","0001015994-05-000001","0001193125-04-208116","0001193125-04-191228","0001206637-04-000002","0001306858-04-000001","0001193125-04-179963","0000935836-04-000239","0000935836-04-000237","0001193125-04-166903","0001230143-04-000002","0001211072-04-000002","0001267550-04-000003","0001273583-04-000002","0001211072-04-000001","0001273583-04-000001","0001267550-04-000002","0001015994-04-000002","0001193125-04-134517","0001193125-04-132800","0001193125-04-130381","0001267550-04-000001","0001206639-04-000001","0001193125-04-113522","0001193125-04-100305","0001015994-04-000001","0001193125-04-083766","9999999997-04-021754","0001193125-04-073868","0001193125-04-072419","0001193125-04-058511","0001193125-04-056845","0001230141-04-000001","0001193125-04-040688","0001203481-04-000001","0001056568-04-000015","0001206637-04-000001","0001193125-04-010600","0000935836-04-000003","0001119843-03-000002","0001119843-03-000001","0000935836-03-000342","0001203481-03-000009","0001193125-03-081591","0001203481-03-000008","0001072613-03-001698","0001193125-03-068581","0001267551-03-000002","0001267550-03-000003","0001267550-03-000002","0001203481-03-000006","0001203481-03-000005","0001193125-03-036258","0001193125-03-031987","0001015994-03-000001","0001193125-03-026477","0000927016-03-002742","9999999997-03-021528","0001072613-03-000745","0001072613-03-000744","0001181431-03-006770","0001181431-03-006769","0001181431-03-006768","0001072613-03-000733","0000927016-03-002238","0001072613-03-000698","9999999997-03-015346","0000927016-03-001471","0001072613-03-000466","0001072613-03-000465","0001072613-03-000464","0001072613-03-000463","0001072613-03-000462","0001072613-03-000461","0001072613-03-000460","0001072613-03-000459","0001056568-03-000023","0000766524-03-000091","0001181431-03-000582","0000935836-02-000436","0000927016-02-005505","0000927016-02-004114","0000927016-02-003787","0000927016-02-003643","9999999997-02-038639","0000927016-02-003026","0000927016-02-002851","0000927016-02-002211","0000927016-02-002210","0001012870-02-001669","0000927016-02-001951","0000927016-02-001416","0001043135-02-000018","0000950123-02-001343","0000927016-02-000603","0000927016-02-000549","0001012870-02-000326","0000927016-02-000393","0001012870-02-000275","0000927016-02-000301","0001012870-02-000175","0001021408-02-000540","0000927016-02-000256","0000927016-01-503763","0000927016-01-502459","0000927016-01-501842","0001005477-01-003468","0000927016-01-501082","0000927016-01-501006","0000927016-01-500917","0000927016-01-001608","0000950123-01-500374","0000927016-01-001546","0001005477-01-000866","0000927016-01-000562","0000927016-01-000359","0000912057-00-049512","0000912057-00-036339","0000912057-00-030117","0000912057-00-023847","0000912057-00-003617","0000912057-00-003616","0000912057-00-003487","0000912057-00-002816","0000912057-00-000493","0000912057-99-008202","0000912057-99-002574","0000912057-99-002450"],"filingDate":["2006-02-13","2006-02-09","2006-02-08","2006-02-07","2006-02-07","2006-02-07","2006-02-07","2006-02-07","2006-02-06","2006-02-06","2006-02-06","2006-02-06","2006-02-01","2006-02-01","2006-02-01","2006-02-01","2006-02-01","2006-02-01","2006-01-27","2005-11-14","2005-11-10","2005-11-10","2005-11-09","2005-11-07","2005-11-07","2005-11-03","2005-11-03","2005-10-11","2005-10-11","2005-10-06","2005-10-06","2005-10-06","2005-10-06","2005-10-06","2005-08-09","2005-08-03","2005-07-21","2005-07-21","2005-07-21","2005-07-21","2005-07-20","2005-07-20","2005-07-20","2005-07-20","2005-06-22","2005-06-20","2005-06-08","2005-06-03","2005-06-01","2005-05-23","2005-05-09","2005-05-04","2005-05-04","2005-05-04","2005-04-14","2005-04-07","2005-04-04","2005-03-31","2005-03-16","2005-03-08","2005-03-08","2005-03-07","2005-03-07","2005-02-18","2005-02-14","2005-02-14","2005-02-03","2005-01-31","2005-01-28","2004-12-06","2004-11-09","2004-11-08","2004-10-29","2004-10-28","2004-10-12","2004-10-12","2004-10-05","2004-09-02","2004-09-02","2004-09-02","2004-09-02","2004-09-02","2004-09-02","2004-09-02","2004-08-30","2004-08-06","2004-08-05","2004-08-04","2004-07-15","2004-07-15","2004-07-02","2004-06-09","2004-06-02","2004-05-10","2004-05-05","2004-04-29","2004-04-28","2004-04-07","2004-04-05","2004-03-19","2004-03-12","2004-03-02","2004-02-13","2004-02-12","2004-01-29","2004-01-13","2003-12-18","2003-12-18","2003-12-12","2003-12-03","2003-11-14","2003-11-10","2003-10-29","2003-10-29","2003-10-27","2003-10-23","2003-10-23","2003-08-29","2003-08-21","2003-08-14","2003-08-08","2003-07-31","2003-07-30","2003-05-15","2003-05-14","2003-05-06","2003-05-06","2003-05-02","2003-05-02","2003-05-02","2003-05-01","2003-04-30","2003-04-29","2003-03-31","2003-03-28","2003-03-19","2003-03-19","2003-03-19","2003-03-19","2003-03-19","2003-03-19","2003-03-19","2003-03-19","2003-02-14","2003-02-14","2003-01-13","2002-12-10","2002-11-14","2002-08-14","2002-07-30","2002-07-16","2002-07-03","2002-05-24","2002-05-14","2002-04-22","2002-04-22","2002-04-08","2002-04-08","2002-03-13","2002-02-14","2002-02-12","2002-02-08","2002-02-07","2002-01-30","2002-01-29","2002-01-28","2002-01-22","2002-01-18","2002-01-17","2002-01-17","2001-11-14","2001-08-14","2001-07-11","2001-05-22","2001-05-15","2001-05-14","2001-05-11","2001-03-30","2001-03-29","2001-03-28","2001-02-13","2001-02-09","2001-02-01","2000-11-14","2000-08-11","2000-06-28","2000-05-12","2000-02-03","2000-02-03","2000-02-02","2000-01-28","2000-01-07","1999-12-03","1999-10-28","1999-10-27"],"reportDate":["","2006-01-31","2006-01-31","2006-01-31","2006-01-31","2006-01-31","2006-01-31","2006-01-31","2006-01-31","2006-01-31","2006-01-31","2006-01-31","","","","","","","","","","","2005-09-30","","","2005-11-02","","2005-10-05","","2005-10-05","","","","","2005-06-30","2005-08-03","2005-07-14","2005-07-14","2005-07-14","2005-07-14","","2005-07-14","2005-07-14","2005-07-14","2005-07-14","2005-06-14","2005-06-02","","2005-05-31","","2005-03-31","2005-05-04","2005-04-29","2005-04-29","","2005-04-01","","","2004-12-31","2005-03-03","2005-03-03","2005-03-03","2005-03-03","2005-02-14","","","2005-02-02","","2005-01-24","2004-12-03","2004-09-30","2004-11-04","2004-10-21","2004-10-27","","","2004-09-30","2004-08-31","2004-08-31","2004-08-31","2004-08-31","2004-08-31","2004-08-31","2004-08-31","2004-08-26","2004-06-30","2004-07-30","2004-08-03","2004-04-01","2004-04-01","2004-06-30","2004-06-08","2004-05-28","2004-03-31","2003-12-31","2004-05-27","2004-04-28","2004-04-02","2004-04-05","2004-03-19","2003-12-31","2004-02-27","","2004-02-10","2004-01-28","","2003-12-18","2003-12-18","","2003-12-01","2003-09-30","2003-11-06","2003-10-28","2003-10-28","2003-10-15","2003-10-15","2003-10-15","2003-08-19","2003-08-19","2003-06-30","","2003-07-30","2003-07-30","2003-03-31","2002-12-31","2003-04-02","2003-04-30","2003-04-25","2003-04-25","2003-04-25","2003-04-30","2003-06-12","2003-04-29","2003-01-23","2002-12-31","2003-03-17","2003-03-17","2003-03-17","2003-03-17","2003-03-17","2003-03-17","2003-03-17","2003-03-17","","","2003-01-09","","2002-09-30","2002-06-30","","2002-07-11","2001-12-31","2002-06-26","2002-03-31","","2002-04-19","","2002-04-02","2001-12-31","","","","","","","","2002-01-16","","","","2001-09-30","2001-06-30","2001-04-30","","2001-03-31","2001-04-30","","2001-05-04","","2000-12-31","","","","2000-09-30","2000-06-30","","2000-03-31","","","","","","","",""],"acceptanceDateTime":["2006-02-13T21:49:07.000Z","2006-02-09T18:32:41.000Z","2006-02-08T16:50:06.000Z","2006-02-07T21:21:22.000Z","2006-02-07T20:44:55.000Z","2006-02-07T18:29:21.000Z","2006-02-07T16:36:25.000Z","2006-02-07T16:04:09.000Z","2006-02-06T22:29:44.000Z","2006-02-06T21:57:03.000Z","2006-02-06T21:14:54.000Z","2006-02-06T19:54:05.000Z","2006-02-01T12:03:00.000Z","2006-02-01T12:02:34.000Z","2006-02-01T12:02:14.000Z","2006-02-01T12:01:49.000Z","2006-02-01T12:01:23.000Z","2006-02-01T12:00:57.000Z","2006-01-27T21:24:41.000Z","2005-11-14T17:43:40.000Z","2005-11-10T15:24:07.000Z","2005-11-10T15:14:25.000Z","2005-11-09T20:08:44.000Z","2005-11-07T22:12:11.000Z","2005-11-07T21:00:33.000Z","2005-11-03T22:08:58.000Z","2005-11-03T22:07:03.000Z","2005-10-11T18:56:40.000Z","2005-10-11T10:27:24.000Z","2005-10-06T21:23:39.000Z","2005-10-06T21:21:45.000Z","2005-10-06T21:19:29.000Z","2005-10-06T21:18:08.000Z","2005-10-06T20:57:05.000Z","2005-08-09T20:19:17.000Z","2005-08-03T21:04:16.000Z","2005-07-21T18:50:41.000Z","2005-07-21T18:36:14.000Z","2005-07-21T18:24:49.000Z","2005-07-21T18:11:08.000Z","2005-07-20T19:49:44.000Z","2005-07-20T18:07:05.000Z","2005-07-20T17:46:29.000Z","2005-07-20T17:40:09.000Z","2005-06-22T13:58:39.000Z","2005-06-20T20:59:05.000Z","2005-06-08T20:05:30.000Z","2005-06-03T19:55:23.000Z","2005-06-01T19:59:10.000Z","2005-05-23T20:05:17.000Z","2005-05-09T20:51:19.000Z","2005-05-04T21:24:31.000Z","2005-05-04T19:36:50.000Z","2005-05-04T15:44:34.000Z","2005-04-14T21:09:52.000Z","2005-04-07T20:47:39.000Z","2005-04-04T18:40:22.000Z","2005-03-31T21:55:23.000Z","2005-03-16T22:15:12.000Z","2005-03-08T22:00:16.000Z","2005-03-08T20:12:45.000Z","2005-03-08T02:47:24.000Z","2005-03-08T02:35:58.000Z","2005-02-18T21:45:26.000Z","2005-02-14T20:33:48.000Z","2005-02-14T20:23:29.000Z","2005-02-03T12:10:42.000Z","2005-01-31T21:33:17.000Z","2005-01-28T20:14:59.000Z","2004-12-06T22:14:29.000Z","2004-11-09T20:51:21.000Z","2004-11-08T16:59:20.000Z","2004-10-29T19:42:26.000Z","2004-10-28T12:19:32.000Z","2004-10-12T19:54:18.000Z","2004-10-12T18:45:46.000Z","2004-10-05T19:29:45.000Z","2004-09-02T20:56:27.000Z","2004-09-02T19:49:34.000Z","2004-09-02T19:48:41.000Z","2004-09-02T19:27:06.000Z","2004-09-02T19:26:36.000Z","2004-09-02T19:05:15.000Z","2004-09-02T19:03:58.000Z","2004-08-30T19:25:17.000Z","2004-08-06T21:22:06.000Z","2004-08-05T21:31:14.000Z","2004-08-03T22:57:09.000Z","2004-07-15T21:08:25.000Z","2004-07-15T19:40:47.000Z","2004-07-02T15:58:07.000Z","2004-06-08T22:54:14.000Z","2004-06-02T18:46:22.000Z","2004-05-10T20:57:31.000Z","2004-05-10T15:31:35.000Z","2004-04-29T19:41:59.000Z","2004-04-28T21:27:36.000Z","2004-04-07T20:21:56.000Z","2004-04-05T17:09:50.000Z","2004-03-19T20:14:47.000Z","2004-03-12T22:16:06.000Z","2004-03-02T19:31:41.000Z","2004-02-13T18:42:56.000Z","2004-02-12T20:08:03.000Z","2004-01-29T00:58:02.000Z","2004-01-13T21:15:18.000Z","2003-12-18T20:36:34.000Z","2003-12-18T20:05:48.000Z","2003-12-12T18:35:44.000Z","2003-12-03T16:36:26.000Z","2003-11-14T18:15:40.000Z","2003-11-10T19:08:37.000Z","2003-10-29T18:04:55.000Z","2003-10-28T22:32:27.000Z","2003-10-27T18:31:24.000Z","2003-10-23T18:41:22.000Z","2003-10-23T18:20:13.000Z","2003-08-29T15:00:46.000Z","2003-08-21T18:20:22.000Z","2003-08-13T21:42:11.000Z","2003-08-08T21:02:00.000Z","2003-07-31T16:31:43.000Z","2003-07-30T21:23:33.000Z","2003-05-15T18:42:42.000Z","2003-05-14T19:49:29.000Z","2003-05-06T21:19:40.000Z","2003-05-06T21:05:35.000Z","2003-05-02T18:05:38.000Z","2003-05-02T18:04:52.000Z","2003-05-02T18:04:08.000Z","2003-05-01T01:47:36.000Z","2003-04-30T19:13:25.000Z","2003-04-29T21:27:08.000Z","2003-04-07T11:54:52.000Z","2003-03-28T20:57:36.000Z","2003-03-19T21:41:27.000Z","2003-03-19T21:41:13.000Z","2003-03-19T21:40:53.000Z","2003-03-19T21:40:36.000Z","2003-03-19T21:40:17.000Z","2003-03-19T21:39:59.000Z","2003-03-19T21:39:43.000Z","2003-03-19T21:39:28.000Z","2003-02-14T19:03:16.000Z","2003-02-14T17:16:41.000Z","2003-01-13T18:45:38.000Z","2002-12-10T18:18:55.000Z","2002-11-13T23:23:42.000Z","2002-08-14T17:55:27.000Z","2002-07-30T19:01:49.000Z","2002-07-15T22:51:34.000Z","2002-07-11T15:45:16.000Z","2002-05-24T19:01:55.000Z","2002-05-14T21:19:31.000Z","2002-04-22T04:00:00.000Z","2002-04-22T04:00:00.000Z","2002-04-08T04:00:00.000Z","2002-04-08T04:00:00.000Z","2002-03-13T05:00:00.000Z","2002-02-14T05:00:00.000Z","2002-02-12T05:00:00.000Z","2002-02-08T05:00:00.000Z","2002-02-07T05:00:00.000Z","2002-01-30T05:00:00.000Z","2002-01-29T05:00:00.000Z","2002-01-28T05:00:00.000Z","2002-01-22T05:00:00.000Z","2002-01-18T05:00:00.000Z","2002-01-17T05:00:00.000Z","2002-01-17T05:00:00.000Z","2001-11-14T05:00:00.000Z","2001-08-14T04:00:00.000Z","2001-07-11T04:00:00.000Z","2001-05-22T04:00:00.000Z","2001-05-15T04:00:00.000Z","2001-05-14T04:00:00.000Z","2001-05-11T04:00:00.000Z","2001-03-30T05:00:00.000Z","2001-03-29T05:00:00.000Z","2001-03-28T05:00:00.000Z","2001-02-13T05:00:00.000Z","2001-02-09T05:00:00.000Z","2001-02-01T05:00:00.000Z","2000-11-14T05:00:00.000Z","2000-08-11T04:00:00.000Z","2000-06-28T04:00:00.000Z","2000-05-12T04:00:00.000Z","2000-02-03T05:00:00.000Z","2000-02-03T05:00:00.000Z","2000-02-02T05:00:00.000Z","2000-01-28T05:00:00.000Z","2000-01-07T05:00:00.000Z","1999-12-03T05:00:00.000Z","1999-10-28T04:00:00.000Z","1999-10-27T04:00:00.000Z"],"act":["34","","","","","","","","","","","","33","33","33","33","33","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","34","34","","","","34","34","34","34","34","","34","34","","","34","34","34","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""],"form":["SC 13G/A","4","4","4","4","4","4","4","4","4/A","4","4","POS AM","POS AM","POS AM","POS AM","POS AM","15-12G","425","SC 13D/A","425","425","10-Q","425","425","8-K","425","8-K","425","8-K","DEFA14A","425","425","425","10-Q","8-K","4","4","4","4","SC 13D/A","3","4","8-K","DEF 14A","8-K","8-K","SC 13D/A","4","SC 13D/A","10-Q","8-K","8-K","3","SC 13D/A","8-K","SC 13D/A","S-8","10-K","8-K","4/A","4","4","8-K","SC 13G","SC 13G/A","8-K","SC 13D/A","4","8-K","10-Q","4","3","8-K","SC 13D","SC 13D/A","8-K","4","4","4","4","4","4","4","4","10-Q","8-K","8-K","4","4","8-K","8-K","4","10-Q","ARS","DEF 14A","8-K","8-K","8-K","3/A","10-K","4","SC 13G/A","4","8-K","SC 13D/A","3","3","SC 13D/A","4","10-Q","4","8-K/A","8-K","3/A","3","3","4/A","4","10-Q","S-8","3","8-K","10-Q","ARS","4","4","3","3","3","8-K","DEF 14A","8-K","NO ACT","10-K","4","4","4","4","4","4","4","4","SC 13G/A","SC 13G","4","SC 13D","10-Q","10-Q","S-8","8-K","ARS","DEF 14A","10-Q","8-A12G","8-K","SC 13D/A","8-K","10-K","SC 13G","SC 13G/A","SC 13G/A","SC 13G/A","SC 13D/A","425","SC 13D","8-K","425","425","425","10-Q","10-Q","8-K/A","SC 13G","10-Q","8-K","S-8","DEF 14A","SC 13G","10-K","SC 13G","SC 13G","SC 13G","10-Q","10-Q","S-8","10-Q","424B4","424B4","S-1/A","S-1/A","S-1/A","S-1/A","8-A12G","S-1"],"fileNumber":["005-60255","","","","","","","","","","","","333-123718","333-107809","333-97333","333-60718","333-40268","000-27861","000-27861","005-60255","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","","","","","005-60255","","","000-27861","000-27861","000-27861","000-27861","005-60255","","005-60255","000-27861","000-27861","000-27861","","005-60255","000-27861","005-60255","333-123718","000-27861","000-27861","","","","000-27861","005-60255","005-60255","000-27861","005-60255","","000-27861","000-27861","","","000-27861","005-60255","005-60255","000-27861","","","","","","","","","000-27861","000-27861","000-27861","","","000-27861","000-27861","","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","","000-27861","","005-60255","","000-27861","005-60255","","","005-60255","","000-27861","","000-27861","000-27861","","","","","","000-27861","333-107809","","000-27861","000-27861","000-27861","","","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","005-60255","005-60255","000-27861","005-60255","000-27861","000-27861","333-97333","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","005-60255","000-27861","000-27861","005-60255","005-60255","005-60255","005-60255","005-60255","000-27861","005-60255","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","000-27861","005-60255","000-27861","000-27861","333-60718","000-27861","005-60255","000-27861","005-60255","005-60255","005-60255","000-27861","000-27861","333-40268","000-27861","333-89817","333-89817","333-89817","333-89817","333-89817","333-89817","000-27861","333-89817"],"filmNumber":["06604321","","","","","","","","","","","","06567776","06567774","06567773","06567772","06567771","06567770","06558173","051198866","051192228","051192209","051189616","051184100","051183431","051177726","051177708","051132312","051130682","051127836","051127818","051127795","051127785","051127649","051010141","05996413","","","","","05963902","","","05963514","05909199","05906319","05885237","05877705","","05851360","05812421","05800310","05798967","","05751440","05739606","05729187","05721300","05686464","05667308","","","","05628100","05609359","05609132","05571297","05562209","","041186836","041129533","","","041100951","041074867","041074593","041065956","","","","","","","","","04958884","04955658","04949732","","","04898163","04854678","","04793928","04028280","04764796","04761654","04722573","04716461","","04666955","","04597058","","04550445","04522924","","","031051369","","031002494","","03962915","03961785","","","","","","03842685","03832426","","03812386","03703893","03058824","","","03679167","03679163","03679160","03674754","03672615","03670379","03019687","03625331","03609420","03609419","03609417","03609416","03609413","03609411","03609408","03609405","03565985","03564580","03511979","02853258","02821394","02734219","02714646","02703436","02041752","02662145","02647599","02617274","02617268","02604296","02604721","02574540","02546169","02537754","02530961","02529598","02522688","02520805","02519244","02514204","2512004","2511410","2511111","1786052","1709873","1678910","1645483","1638830","1633594","1630276","1587874","1584380","1582672","1537642","1529369","1521062","763455","692338","662649","628772","521035","521033","520199","515886","502881","99768649","99736163","99735470"],"items":["","","","","","","","","","","","","","","","","","","","","","","","","","2.02,8.01,9.01","","1.01,9.01","","1.01,8.01,9.01","","","","","","2.02,9.01","","","","","","","","5.02","","1.01,9.01","1.01,9.01","","","","","2.02,9.01","2.02,5.02,9.01","","","1.01,5.02,9.01","","","","1.01","","","","1.01,5.02,9.01","","","2.02,9.01","","","5.02","","","","2.02,9.01","","","1.01,5.02,9.01","","","","","","","","","","5,7","12,7","","","9","9","","","","","12,7","4,7","12","","","","","","12,7","","","","","","","","7,9","12,7","","","","","","","","","12,7,9","","","","","","","","7,9","","7,9","","","","","","","","","","","","","","","","","","4","","","","","5,7","","5,7","","","","","","","","","5,7","","","","","","2,7","","","2,7","","","","","","","","","","","","","","","","","","",""],"core_type":["SC 13G/A","4","4","4","4","4","4","4","4","4/A","4","4","POS AM","POS AM","POS AM","POS AM","POS AM","15-12G","425","SC 13D/A","425","425","10-Q","425","425","8-K","425","8-K","425","8-K","DEFA14A","425","425","425","10-Q","8-K","4","4","4","4","SC 13D/A","3","4","8-K","DEF 14A","8-K","8-K","SC 13D/A","4","SC 13D/A","10-Q","8-K","8-K","3","SC 13D/A","8-K","SC 13D/A","S-8","10-K","8-K","4/A","4","4","8-K","SC 13G","SC 13G/A","8-K","SC 13D/A","4","8-K","10-Q","4","3","8-K","SC 13D","SC 13D/A","8-K","4","4","4","4","4","4","4","4","10-Q","8-K","8-K","4","4","8-K","8-K","4","10-Q","ARS","DEF 14A","8-K","8-K","8-K","3/A","10-K","4","SC 13G/A","4","8-K","SC 13D/A","3","3","SC 13D/A","4","10-Q","4","8-K/A","8-K","3/A","3","3","4/A","4","10-Q","S-8","3","8-K","10-Q","ARS","4","4","3","3","3","8-K","DEF 14A","8-K","NO ACT","10-K","4","4","4","4","4","4","4","4","SC 13G/A","SC 13G","4","SC 13D","10-Q","10-Q","S-8","8-K","ARS","DEF 14A","10-Q","8-A12G","8-K","SC 13D/A","8-K","10-K","SC 13G","SC 13G/A","SC 13G/A","SC 13G/A","SC 13D/A","425","SC 13D","8-K","425","425","425","10-Q","10-Q","8-K/A","SC 13G","10-Q","8-K","S-8","DEF 14A","SC 13G","10-K","SC 13G","SC 13G","SC 13G","10-Q","10-Q","S-8","10-Q","424B4","424B4","S-1/A","S-1/A","S-1/A","S-1/A","8-A12G","S-1"],"size":[9770,10423,17654,17630,17567,10531,21052,10467,17503,17575,17500,17497,23868,23833,23590,23674,25146,15847,27187,49154,85515,99884,509879,54405,225294,136640,137002,44482,8737419,423077,422935,419348,54405,31879435,448892,96504,5684,5705,5693,5699,19778,8363,5711,14457,313146,78754,87123,96163,5764,67779,368665,76375,29449,11985,47872,84293,36355,49959,1324489,14757,5596,5519,5522,93100,9869,19484,100581,26478,4759,12680,502649,14076,4552,97556,18249,18257,24501,5579,5587,5573,5919,5672,5573,5611,15145,490700,124822,98687,5545,5631,14651,12654,18039,344647,1581,379912,74638,16756,22698,4072,1319864,6351,19473,26266,136266,22191,5991,4825,24982,18119,825706,8062,108263,117335,4134,8662,6289,14575,17644,657014,43756,4896,139068,420797,1581,16031,12570,12239,12237,12203,23807,359770,11895,1590,1493927,13896,13919,14002,14045,14028,14085,13902,13941,19480,16415,17748,27003,503762,124552,14477,6286,1551,115530,91772,18521,156356,9814,33242,331746,19438,23452,10930,9589,26911,60367,332991,291514,115111,64175,8852,96934,112274,80936,20977,76077,197946,12902,121577,23518,267641,20447,26045,30773,80843,124369,31424,72075,336796,341397,511586,397972,443657,951005,7382,1056575],"isXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isInlineXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"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,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,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":["cent13g1.txt","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","forms8-123718_14119.htm","forms8-107809_14119.htm","forms8-97333_14119.htm","forms8-60718_14119.htm","forms8-40268_14119.htm","form-15_14119.htm","d8k.htm","centra13d.htm","d425.htm","d425.htm","d10q.htm","d425.htm","d425.htm","d8k.htm","d8k.htm","form8-k_13885.htm","d425.htm","d8k.htm","d8k.htm","d8k.htm","form-425_13879.htm","d425.htm","d10q.htm","d8k.htm","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","centra13d.htm","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","d8k.htm","ddef14a.htm","d8k.htm","d8k.htm","centra13d.htm","xslF345X02/primary_doc.xml","centra13d.htm","d10q.htm","d8k.htm","d8k.htm","xslF345X02/primary_doc.xml","cen13d.htm","d8k.htm","cri13d.htm","ds8.htm","d10k.htm","d8k.htm","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","d8k.htm","centr13g.txt","ctra13gamd3.txt","d8k.htm","centra13d.htm","xslF345X02/primary_doc.xml","d8k.htm","d10q.htm","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","d8k.htm","centra13d.htm","centra13d.htm","d8k.htm","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","d10q.htm","d8k.htm","d8k.htm","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","d8k.htm","d8k.htm","xslF345X02/primary_doc.xml","d10q.htm","9999999997-04-021754.paper","ddef14a.htm","d8k.htm","d8k.htm","d8k.htm","xslF345X02/primary_doc.xml","d10k.htm","xslF345X02/primary_doc.xml","ctra13gamd2.txt","xslF345X02/primary_doc.xml","d8k.htm","centra13da.htm","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","centra13da2.htm","xslF345X02/primary_doc.xml","d10q.htm","xslF345X02/primary_doc.xml","form8-ka_12271.htm","d8k.htm","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X02/primary_doc.xml","d10q.htm","ds8.htm","xslF345X02/primary_doc.xml","d8k.htm","d10q.htm","9999999997-03-021528.paper","xslF345X01/primary_doc.xml","xslF345X01/primary_doc.xml","rrd8037.htm","rrd8059.htm","rrd8060.htm","form8-k_11900b.txt","ddef14a.htm","form8-k_11900.txt","9999999997-03-015346.paper","d10k.htm","form4-navickas_11809.txt","form4-mark_11809.txt","form4-johnson_11809.txt","form4-hult_11809.txt","form4-gruttadauria_11809.txt","form4-daly_11809.txt","form4-damore_11809.txt","form4-barrett_11809.txt","ctra13gamd1.txt","c8ent.txt","rrd3553.htm","centra.htm","d10q.htm","d10q.txt","ds8.txt","d8k.txt","9999999997-02-038639.paper","ddef14a.txt","d10q.txt","d8a12g.txt","d8k.txt","dsc13da.txt","d8k.txt","d10k.txt","ctra13g.txt","y57406csc13ga.txt","dsc13ga.txt","dsc13ga.txt","dsc13da.txt","d425.txt","dsc13d.txt","d8k.txt","d425.txt","d425.txt","d425.txt","d10q.txt","d10q.txt","d8ka.txt","0001.txt","d10q.txt","d8k.txt","ds8.txt","0001.txt","y46803csc13g.txt","0001.txt","0001.txt","0001.txt","0001.txt","a2030601z10-q.txt","a10-q.txt","s-8.txt","","","","","","","","",""],"primaryDocDescription":["AMENDMENT NO. 1 TO SCHEDULE 13G","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","CENTRA SOFTWARE, INC. FORM S-8","CENTRA SOFTWARE, INC. FORM S-8","CENTRA SOFTWARE, INC. FORM S-8","CENTRA SOFTWARE, INC. FORM S-8","CENTRA SOFTWARE, INC. FORM S-8","CENTRA SOFTWARE, INC. FORM 15","FORM 8-K","","FORM 425","FORM 425","FORM 10-Q","FILED PURSUANT TO RULE 425","FORM 425","FORM 8-K","FORM 8-K","FORM 8-K  (OCTOBER 5, 2005)","FILED PURSUANT TO RULE 425","FORM 8-K","FORM 8-K","FORM 8-K","RULE 425 FILING","FILED PURSUANT TO RULE 425","FORM 10-Q","FORM 8-K","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 8-K","NOTICE & PROXY STATEMENT","FORM 8-K","FORM 8-K","","PRIMARY DOCUMENT","","FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2005","FORM 8-K","FORM 8-K","PRIMARY DOCUMENT","","FORM 8-K","","FORM S-8","FORM 10-K","FORM 8-K","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 8-K","13 G","CENTRA SOFTWARE INC","FORM 8-K","","PRIMARY DOCUMENT","FORM 8-K","FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2004","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 8-K","","","FORM 8-K","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2004","FORM 8-K","FORM 8-K","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 8-K","FORM 8-K","PRIMARY DOCUMENT","FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2004","AUTO-GENERATED PAPER DOCUMENT","DEFINITIVE PROXY STATEMENT","FORM 8-K","FORM 8-K","FORM 8-K","PRIMARY DOCUMENT","FORM 10-K","PRIMARY DOCUMENT","CENTRA SOFTWARE INC","PRIMARY DOCUMENT","FORM 8-K","AMENDED NO. 2 SCHEDULE 13D","PRIMARY DOCUMENT","PRIMARY DOCUMENT","","PRIMARY DOCUMENT","FORM 10-Q","PRIMARY DOCUMENT","CENTRA SOFTWARE, INC. FORM 8-K/A","FORM 8-K","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 10-Q","FORM S-8","PRIMARY DOCUMENT","FORM 8-K","FORM 10-Q","AUTO-GENERATED PAPER DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 3","FORM 3","FORM 3","CENTRA SOFTWARE, INC. FORM 8-K","DEFINITIVE PROXY STATEMENT","FORM 8-K - DATED APRIL 29, 2003","AUTO-GENERATED PAPER DOCUMENT","FORM 10-K","FORM 4 - LEON NAVICKAS","FORM 4 - ANTHONY J. MARK","FORM 4 - STEPHEN A. JOHNSON","FORM 4 - ROBERT HULT","FORM 4 - JOSEPH GRUTTADAURIA","FORM 4 - PAUL R. DALY","FORM 4 - RICHARD D'AMORE","FORM 4 - DAVID BARRETT","CENTRA SOFTWARE INC","","FORM 4","","FORM 10-Q","FORM 10-Q","FORM S-8","FORM 8-K","AUTO-GENERATED PAPER DOCUMENT","DEFINITIVE PROXY STATEMENT","FORM 10-Q FOR 03/31/2002","FORM 8-A","FORM 8-K","AMENDMENT #2","FORM 8-K","FORM 10K","CENTRA  SOFTWARE INC","AMENDMENT NO. 1 TO SCHEDULE 13G","SCHEDULE 13G/A","SCHEDULE 13G/A","AMENDMENT #1 TO SCHEDULE 13D","FORM 425","SCHEDULE 13D","FORM 8-K","FILED PURSUANT TO RULE 425","FILED PURSUANT TO RULE 425","FORM 425","FORM 10-Q FOR 09/30/2001","FORM 10-Q FOR 06/30/2001","FORM 8-K/A","SCHEDULE 13G","FORM 10-Q","FORM 8-K","FORM S-8","DEFINITIVE PROXY STATEMENT","CENTRA SOFTWARE INC./GEOCAPITAL, LLC","FORM 10-K","FORM SC 13G","SCHEDULE 13G","SCHEDULE 13G","10-Q","FORM 10-Q","FORM S-8","10-Q","424B4","424B4","FORM S-1/A","FORM S-1/A","FORM S-1/A","FORM S-1/A","8-12G","FORM S-1"]},"files":[]}}