| Date Filed | Type | Description |
| 09/09/2020 |
10-Q
| Quarterly Report for the period ended July 31, 2020 |
| 07/23/2020 |
10-Q
| Quarterly Report for the period ended April 30, 2020 |
| 03/04/2020 |
10-Q
| Quarterly Report for the period ended January 31, 2020 |
| 09/05/2019 |
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 |
| 03/12/2019 |
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 |
| 03/08/2018 |
10-Q
| Quarterly Report for the period ended January 31, 2018 |
| 08/29/2017 |
10-Q
| Quarterly Report for the period ended July 31, 2017 |
| 06/01/2017 |
10-Q
| Quarterly Report for the period ended April 30, 2017 |
| 03/09/2017 |
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 |
| 06/08/2016 |
10-Q
| Quarterly Report for the period ended April 30, 2016 |
| 03/03/2016 |
10-Q
| Quarterly Report for the period ended January 31, 2016 |
| 09/14/2015 |
10-Q
| Quarterly Report for the period ended July 31, 2015 |
| 09/14/2015 |
10-Q/A
| Quarterly Report for the period ended April 30, 2015 [amend] |
| 09/14/2015 |
10-Q/A
| Quarterly Report for the period ended January 31, 2015 [amend] |
| 06/05/2015 |
10-Q
| Quarterly Report for the period ended April 30, 2015 |
| 03/11/2015 |
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 |
| 05/23/2014 |
10-Q
| Quarterly Report for the period ended April 30, 2014 |
| 02/26/2014 |
10-Q
| Quarterly Report for the period ended January 31, 2014 |
| 08/30/2013 |
10-Q
| Quarterly Report for the period ended July 31, 2013 |
| 05/23/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 03/01/2013 |
10-Q
| Quarterly Report for the period ended January 31, 2013 |
| 08/23/2012 |
10-Q
| Quarterly Report for the period ended July 31, 2012 |
| 05/23/2012 |
10-Q
| Quarterly Report for the period ended April 30, 2012 |
| 02/22/2012 |
10-Q
| Quarterly Report for the period ended January 31, 2012 |
| 08/26/2011 |
10-Q
| Quarterly Report for the period ended July 31, 2011 |
| 05/27/2011 |
10-Q
| Quarterly Report for the period ended April 30, 2011 |
| 02/22/2011 |
10-Q
| Quarterly Report for the period ended January 31, 2011 |
| 08/25/2010 |
10-Q
| Quarterly Report for the period ended July 31, 2010 |
| 05/25/2010 |
10-Q
| Quarterly Report for the period ended April 30, 2010 |
|