| Date Filed | Type | Description |
| 10/31/2022 |
10-K
| Annual Report for the period ended July 31, 2022 |
| 10/26/2021 |
10-K
| Annual Report for the period ended July 31, 2021 |
| 10/29/2020 |
10-K
| Annual Report for the period ended July 31, 2020 |
| 10/28/2019 |
10-K
| Annual Report for the period ended July 31, 2019 |
| 04/26/2019 |
10-K/A
| Annual Report for the period ended July 31, 2018 [amend] |
| 02/13/2019 |
10-K/A
| Annual Report for the period ended July 31, 2018 [amend] |
| 02/13/2019 |
10-K/A
| Annual Report for the period ended July 31, 2017 [amend] |
| 11/16/2018 |
10-K
| Annual Report for the period ended July 31, 2018 |
| 12/14/2017 |
10-K
| Annual Report for the period ended July 31, 2017 |
| 10/27/2016 |
10-K
| Annual Report for the period ended July 31, 2016 |
| 09/30/2015 |
10-K
| Annual Report for the period ended July 31, 2015 |
| 07/15/2015 |
10-K
| Annual Report for the period ended July 31, 2014 |
| 07/30/2014 |
10-K
| Annual Report for the period ended July 31, 2013 |
| 11/15/2012 |
10-K/A
| Annual Report for the period ended July 31, 2012 [amend] |
| 11/13/2012 |
10-K
| Annual Report for the period ended July 31, 2012 |
| 10/31/2011 |
10-K
| Annual Report for the period ended July 31, 2011 |
| 10/08/2010 |
10-K
| Annual Report for the period ended July 31, 2010 |
| 10/15/2009 |
10-K
| Annual Report for the period ended July 31, 2009 |
| 10/29/2008 |
10-K
| Annual Report for the period ended July 31, 2008 |
| 11/09/2004 |
10-K
| Annual Report for the period ended July 31, 2004 |
| 03/03/2004 |
10-K/A
| Annual Report for the period ended July 31, 2003 [amend] |
| 11/13/2003 |
10-K
| Annual Report for the period ended July 31, 2003 |
| 02/03/2003 |
10-K
| Annual Report for the period ended July 31, 2002 |
| 10/30/2001 |
10-K
| Annual Report for the period ended July 31, 2001 |
| 11/28/2000 |
10-K/A
| Annual Report for the period ended July 31, 2000 [amend] |
| 11/14/2000 |
10-K
| Annual Report for the period ended July 31, 2000 |
| 09/08/2000 |
10-K/A
| Annual Report for the period ended July 31, 1999 [amend] |
| 08/25/2000 |
10-K/A
| Annual Report for the period ended July 31, 1999 [amend] |
| 04/14/2000 |
10-K/A
| Annual Report for the period ended July 31, 1999 [amend] |
| 10/26/1999 |
10-K
| Annual Report for the period ended July 31, 1999 |
| 10/29/1998 |
10-K
| Annual Report for the period ended July 31, 1998 |