| Date Filed | Type | Description |
| 10/12/2023 |
10-K
| Annual Report for the period ended July 31, 2023 |
| 10/13/2022 |
10-K
| Annual Report for the period ended July 31, 2022 |
| 10/13/2021 |
10-K
| Annual Report for the period ended July 31, 2021 |
| 10/13/2020 |
10-K
| Annual Report for the period ended July 31, 2020 |
| 10/10/2019 |
10-K
| Annual Report for the period ended July 31, 2019 |
| 10/12/2018 |
10-K
| Annual Report for the period ended July 31, 2018 |
| 10/10/2017 |
10-K
| Annual Report for the period ended July 31, 2017 |
| 10/07/2016 |
10-K
| Annual Report for the period ended July 31, 2016 |
| 10/09/2015 |
10-K
| Annual Report for the period ended July 31, 2015 |
| 10/10/2014 |
10-K
| Annual Report for the period ended July 31, 2014 |
| 10/11/2013 |
10-K
| Annual Report for the period ended July 31, 2013 |
| 10/11/2012 |
10-K
| Annual Report for the period ended July 31, 2012 |
| 10/12/2011 |
10-K
| Annual Report for the period ended July 31, 2011 |
| 10/12/2010 |
10-K
| Annual Report for the period ended July 31, 2010 |
| 10/09/2009 |
10-K
| Annual Report for the period ended July 31, 2009 |
| 10/10/2008 |
10-K
| Annual Report for the period ended July 31, 2008 |
| 10/10/2007 |
10-K
| Annual Report for the period ended July 31, 2007 |
| 10/20/2006 |
10-K
| Annual Report for the period ended July 31, 2006 |
| 10/20/2005 |
10-K
| Annual Report for the period ended July 31, 2005 |
| 10/28/2004 |
10-K
| Annual Report for the period ended July 31, 2004 |
| 10/24/2003 |
10-K
| Annual Report for the period ended July 31, 2003 |
| 10/15/2002 |
10-K
| Annual Report for the period ended July 31, 2002 |
| 10/26/2001 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/25/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/21/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/20/1998 |
10-K
| Annual Report for the period ended July 31, 1998 |
| 10/24/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/24/1996 |
10-K
| Annual Report for the period ended July 31, 1996 |
| 10/26/1995 |
10-K
| Annual Report for the period ended July 31, 1995 |
| 10/31/1994 |
10-K
| Annual Report for the period ended July 31, 1994 |