| Date Filed | Type | Description |
| 09/09/2020 |
10-Q
| Quarterly Report for the period ended July 31, 2020 |
| 06/09/2020 |
10-Q
| Quarterly Report for the period ended April 30, 2020 |
| 03/09/2020 |
10-Q
| Quarterly Report for the period ended January 31, 2020 |
| 09/06/2019 |
10-Q
| Quarterly Report for the period ended July 31, 2019 |
| 06/10/2019 |
10-Q
| Quarterly Report for the period ended April 30, 2019 |
| 03/08/2019 |
10-Q
| Quarterly Report for the period ended January 31, 2019 |
| 09/07/2018 |
10-Q
| Quarterly Report for the period ended July 31, 2018 |
| 06/11/2018 |
10-Q
| Quarterly Report for the period ended April 30, 2018 |
| 04/24/2018 |
10-Q/A
| Quarterly Report for the period ended January 31, 2018 [amend] |
| 03/12/2018 |
10-Q
| Quarterly Report for the period ended January 31, 2018 |
| 09/11/2017 |
10-Q
| Quarterly Report for the period ended July 31, 2017 |
| 06/08/2017 |
10-Q
| Quarterly Report for the period ended April 30, 2017 |
| 03/13/2017 |
10-Q
| Quarterly Report for the period ended January 31, 2017 |
| 09/09/2016 |
10-Q
| Quarterly Report for the period ended July 31, 2016 |
| 05/16/2016 |
10-Q
| Quarterly Report for the period ended January 31, 2016 |
| 01/29/2016 |
10-Q
| Quarterly Report for the period ended July 31, 2015 |
| 12/01/2015 |
10-Q
| Quarterly Report for the period ended April 30, 2015 |
| 12/01/2015 |
10-Q
| Quarterly Report for the period ended January 31, 2015 |
| 09/09/2014 |
10-Q
| Quarterly Report for the period ended July 31, 2014 |
| 06/06/2014 |
10-Q
| Quarterly Report for the period ended April 30, 2014 |
| 03/12/2014 |
10-Q
| Quarterly Report for the period ended January 31, 2014 |
| 09/09/2013 |
10-Q
| Quarterly Report for the period ended July 31, 2013 |
| 06/10/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 03/07/2013 |
10-Q
| Quarterly Report for the period ended January 31, 2013 |
| 09/10/2012 |
10-Q
| Quarterly Report for the period ended July 31, 2012 |
| 06/11/2012 |
10-Q
| Quarterly Report for the period ended April 30, 2012 |
| 03/12/2012 |
10-Q
| Quarterly Report for the period ended January 31, 2012 |
| 09/07/2011 |
10-Q
| Quarterly Report for the period ended July 31, 2011 |
| 06/02/2011 |
10-Q
| Quarterly Report for the period ended April 30, 2011 |
| 03/08/2011 |
10-Q
| Quarterly Report for the period ended January 31, 2011 |
| 09/09/2010 |
10-Q
| Quarterly Report for the period ended July 31, 2010 |
| 06/01/2010 |
10-Q
| Quarterly Report for the period ended April 30, 2010 |
| 03/11/2010 |
10-Q
| Quarterly Report for the period ended January 31, 2010 |
| 09/08/2009 |
10-Q
| Quarterly Report for the period ended July 31, 2009 |
|