| Date Filed | Type | Description |
| 09/04/2020 |
10-Q
| Quarterly Report for the period ended July 31, 2020 |
| 06/05/2020 |
10-Q
| Quarterly Report for the period ended April 30, 2020 |
| 03/06/2020 |
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 |
| 06/05/2019 |
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 |
| 06/06/2018 |
10-Q
| Quarterly Report for the period ended April 30, 2018 |
| 03/09/2018 |
10-Q
| Quarterly Report for the period ended January 31, 2018 |
| 09/06/2017 |
10-Q
| Quarterly Report for the period ended July 31, 2017 |
| 06/07/2017 |
10-Q
| Quarterly Report for the period ended April 30, 2017 |
| 03/08/2017 |
10-Q
| Quarterly Report for the period ended January 31, 2017 |
| 09/07/2016 |
10-Q
| Quarterly Report for the period ended July 31, 2016 |
| 06/03/2016 |
10-Q
| Quarterly Report for the period ended April 30, 2016 |
| 03/09/2016 |
10-Q
| Quarterly Report for the period ended January 31, 2016 |
| 09/04/2015 |
10-Q
| Quarterly Report for the period ended July 31, 2015 |
| 06/09/2015 |
10-Q
| Quarterly Report for the period ended April 30, 2015 |
| 03/06/2015 |
10-Q
| Quarterly Report for the period ended January 31, 2015 |
| 09/05/2014 |
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 |
| 03/07/2014 |
10-Q
| Quarterly Report for the period ended January 31, 2014 |
| 09/06/2013 |
10-Q
| Quarterly Report for the period ended July 31, 2013 |
| 06/07/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 03/08/2013 |
10-Q
| Quarterly Report for the period ended January 31, 2013 |
| 09/05/2012 |
10-Q
| Quarterly Report for the period ended July 31, 2012 |
| 06/06/2012 |
10-Q
| Quarterly Report for the period ended April 30, 2012 |
| 03/07/2012 |
10-Q
| Quarterly Report for the period ended January 31, 2012 |
| 09/22/2011 |
10-Q/A
| Quarterly Report for the period ended July 31, 2011 [amend] |
| 09/08/2011 |
10-Q
| Quarterly Report for the period ended July 31, 2011 |
| 06/08/2011 |
10-Q
| Quarterly Report for the period ended April 30, 2011 |
| 03/09/2011 |
10-Q
| Quarterly Report for the period ended January 31, 2011 |
| 09/03/2010 |
10-Q
| Quarterly Report for the period ended July 31, 2010 |
| 06/04/2010 |
10-Q
| Quarterly Report for the period ended April 30, 2010 |
| 03/10/2010 |
10-Q
| Quarterly Report for the period ended January 31, 2010 |
|