| Date Filed | Type | Description |
| 09/25/2020 |
10-K
| Annual Report for the period ended July 31, 2020 |
| 09/25/2019 |
10-K
| Annual Report for the period ended July 31, 2019 |
| 09/27/2018 |
10-K
| Annual Report for the period ended July 31, 2018 |
| 09/28/2017 |
10-K
| Annual Report for the period ended July 31, 2017 |
| 09/29/2016 |
10-K
| Annual Report for the period ended July 31, 2016 |
| 09/29/2015 |
10-K
| Annual Report for the period ended July 31, 2015 |
| 09/29/2014 |
10-K
| Annual Report for the period ended July 31, 2014 |
| 12/04/2013 |
10-K/A
| Annual Report for the period ended July 31, 2013 [amend] |
| 09/30/2013 |
10-K
| Annual Report for the period ended July 31, 2013 |
| 10/15/2012 |
10-K
| Annual Report for the period ended July 31, 2012 |
| 10/14/2011 |
10-K
| Annual Report for the period ended July 31, 2011 |
| 10/14/2010 |
10-K
| Annual Report for the period ended July 31, 2010 |
| 10/14/2009 |
10-K
| Annual Report for the period ended July 31, 2009 |
| 10/14/2008 |
10-K
| Annual Report for the period ended July 31, 2008 |
| 02/26/2008 |
10-K/A
| Annual Report for the period ended July 31, 2007 [amend] |
| 10/15/2007 |
10-K
| Annual Report for the period ended July 31, 2007 |
| 10/16/2006 |
10-K
| Annual Report for the period ended July 31, 2006 |
| 10/14/2005 |
10-K
| Annual Report for the period ended October 12, 2005 |
| 10/14/2004 |
10-K
| Annual Report for the period ended July 31, 2004 |
| 10/29/2003 |
10-K
| Annual Report for the period ended July 31, 2003 |
| 10/29/2002 |
10-K
| Annual Report for the period ended July 31, 2002 |
| 10/29/2001 |
10-K
| Annual Report for the period ended July 31, 2001 |
| 10/30/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/29/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/28/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 01/07/1998 |
10-K/A
| Annual Report for the period ended July 31, 1997 [amend] |
| 12/17/1997 |
10-K/A
| Annual Report for the period ended July 31, 1997 [amend] |
| 10/28/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 11/27/1996 |
10-K/A
| Annual Report for the period ended July 31, 1996 [amend] |
| 10/29/1996 |
10-K
| Annual Report for the period ended July 31, 1996 |
| 11/06/1995 |
10-K
| Annual Report for the period ended July 31, 1995 |