| Date Filed | Type | Description |
| 11/13/2020 |
10-K
| Annual Report for the period ended July 31, 2020 |
| 06/29/2020 |
10-K/A
| Annual Report for the period ended July 31, 2019 [amend] |
| 06/10/2020 |
10-K/A
| Annual Report for the period ended July 31, 2019 [amend] |
| 11/12/2019 |
10-K
| Annual Report for the period ended July 31, 2019 |
| 10/26/2018 |
10-K
| Annual Report for the period ended July 31, 2018 |
| 10/26/2017 |
10-K
| Annual Report for the period ended July 31, 2017 |
| 01/20/2017 |
10-K/A
| Annual Report for the period ended July 31, 2016 [amend] |
| 01/17/2017 |
10-K/A
| Annual Report for the period ended July 31, 2016 [amend] |
| 01/13/2017 |
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 |
| 10/17/2014 |
10-K/A
| Annual Report for the period ended July 31, 2014 [amend] |
| 10/03/2014 |
10-K
| Annual Report for the period ended July 31, 2014 |
| 10/18/2013 |
10-K/A
| Annual Report for the period ended July 31, 2013 [amend] |
| 10/11/2013 |
10-K
| Annual Report for the period ended July 31, 2013 |
| 10/19/2012 |
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 |
| 10/28/2011 |
10-K/A
| Annual Report for the period ended July 31, 2011 [amend] |
| 10/14/2011 |
10-K
| Annual Report for the period ended July 31, 2011 |
| 11/24/2010 |
10-K/A
| Annual Report for the period ended July 31, 2010 [amend] |
| 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 |
| 11/25/2008 |
10-K/A
| Annual Report for the period ended July 31, 2008 [amend] |
| 10/10/2008 |
10-K
| Annual Report for the period ended July 31, 2008 |
| 03/12/2008 |
10-K/A
| Annual Report for the period ended July 31, 2007 [amend] |
| 11/28/2007 |
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 |
| 02/14/2007 |
10-K/A
| Annual Report for the period ended July 31, 2006 [amend] |
| 11/28/2006 |
10-K/A
| Annual Report for the period ended July 31, 2006 [amend] |
| 10/16/2006 |
10-K
| Annual Report for the period ended July 31, 2006 |
| 11/28/2005 |
10-K/A
| Annual Report for the period ended July 31, 2005 [amend] |
| 10/28/2005 |
10-K
| Annual Report for the period ended July 31, 2005 |
| 11/29/2004 |
10-K/A
| Annual Report for the period ended July 31, 2004 [amend] |
| 11/10/2004 |
10-K
| Annual Report for the period ended July 31, 2004 |
| 11/28/2003 |
10-K/A
| Annual Report for the period ended July 31, 2003 [amend] |
|