| Date Filed | Type | Description |
| 10/14/2022 |
10-K
| Annual Report for the period ended July 31, 2022 |
| 10/14/2021 |
10-K
| Annual Report for the period ended July 31, 2021 |
| 12/22/2020 |
10-K/A
| Annual Report for the period ended July 31, 2020 [amend] |
| 10/14/2020 |
10-K
| Annual Report for the period ended July 31, 2020 |
| 10/11/2019 |
10-K
| Annual Report for the period ended July 31, 2019 |
| 10/15/2018 |
10-K
| Annual Report for the period ended July 31, 2018 |
| 10/16/2017 |
10-K
| Annual Report for the period ended July 31, 2017 |
| 10/14/2016 |
10-K
| Annual Report for the period ended July 31, 2016 |
| 10/14/2015 |
10-K
| Annual Report for the period ended July 31, 2015 |
| 10/14/2014 |
10-K
| Annual Report for the period ended July 31, 2014 |
| 10/15/2013 |
10-K
| Annual Report for the period ended July 31, 2013 |
| 11/09/2012 |
10-K/A
| Annual Report for the period ended July 31, 2012 [amend] |
| 10/15/2012 |
10-K
| Annual Report for the period ended July 31, 2012 |
| 10/11/2011 |
10-K
| Annual Report for the period ended July 31, 2011 |
| 10/28/2010 |
10-K
| Annual Report for the period ended July 31, 2010 |
| 03/25/2010 |
10-K/A
| Annual Report for the period ended July 31, 2009 [amend] |
| 10/29/2009 |
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 |
| 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 July 31, 2005 |
| 10/14/2004 |
10-K
| Annual Report for the period ended July 31, 2004 |
| 02/09/2004 |
10-K/A
| Annual Report for the period ended July 31, 2003 [amend] |
| 02/09/2004 |
10-K/A
| Annual Report for the period ended July 31, 2002 [amend] |
| 10/29/2003 |
10-K/A
| Annual Report for the period ended July 31, 2003 [amend] |
| 10/29/2003 |
10-K
| Annual Report for the period ended July 31, 2003 |
| 09/03/2003 |
10-K/A
| Annual Report for the period ended July 31, 2002 [amend] |
| 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 |
| 10/31/2000 |
10-K
| Annual Report for the period ended July 31, 2000 |
| 08/11/2000 |
10-K/A
| Annual Report for the period ended July 31, 1999 [amend] |
| 11/04/1999 |
10-K
| Annual Report for the period ended July 31, 1999 |
| 12/04/1998 |
10-K/A
| Annual Report for the period ended July 31, 1998 [amend] |
| 10/29/1998 |
10-K
| Annual Report for the period ended July 31, 1998 |
|