| Date Filed | Type | Description |
| 05/26/2023 |
10-Q
| Quarterly Report for the period ended April 30, 2023 |
| 05/27/2022 |
10-Q
| Quarterly Report for the period ended April 30, 2022 |
| 03/03/2022 |
10-Q
| Quarterly Report for the period ended January 31, 2022 |
| 08/31/2021 |
10-Q
| Quarterly Report for the period ended July 31, 2021 |
| 05/28/2021 |
10-Q
| Quarterly Report for the period ended April 30, 2021 |
| 03/02/2021 |
10-Q
| Quarterly Report for the period ended January 31, 2021 |
| 09/01/2020 |
10-Q
| Quarterly Report for the period ended July 31, 2020 |
| 03/03/2020 |
10-Q
| Quarterly Report for the period ended January 31, 2020 |
| 08/30/2019 |
10-Q
| Quarterly Report for the period ended July 31, 2019 |
| 05/30/2019 |
10-Q
| Quarterly Report for the period ended April 30, 2019 |
| 03/05/2019 |
10-Q
| Quarterly Report for the period ended January 31, 2019 |
| 08/30/2018 |
10-Q
| Quarterly Report for the period ended July 31, 2018 |
| 05/31/2018 |
10-Q
| Quarterly Report for the period ended April 30, 2018 |
| 03/05/2018 |
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 |
| 06/06/2017 |
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 |
| 06/06/2016 |
10-Q
| Quarterly Report for the period ended April 30, 2016 |
| 03/08/2016 |
10-Q
| Quarterly Report for the period ended January 31, 2016 |
| 09/02/2015 |
10-Q
| Quarterly Report for the period ended July 31, 2015 |
| 06/05/2015 |
10-Q
| Quarterly Report for the period ended April 30, 2015 |
| 03/09/2015 |
10-Q
| Quarterly Report for the period ended January 31, 2015 |
| 09/02/2014 |
10-Q
| Quarterly Report for the period ended July 31, 2014 |
| 06/04/2014 |
10-Q
| Quarterly Report for the period ended April 30, 2014 |
| 03/05/2014 |
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 |
| 06/03/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 03/05/2013 |
10-Q
| Quarterly Report for the period ended January 31, 2013 |
| 09/06/2012 |
10-Q/A
| Quarterly Report for the period ended July 31, 2012 [amend] |
| 09/05/2012 |
10-Q
| Quarterly Report for the period ended July 31, 2012 |
| 06/04/2012 |
10-Q
| Quarterly Report for the period ended April 30, 2012 |
| 03/05/2012 |
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 |
|