| Date Filed | Type | Description |
| 06/16/2023 |
10-Q
| Quarterly Report for the period ended April 30, 2023 |
| 03/17/2023 |
10-Q
| Quarterly Report for the period ended January 31, 2023 |
| 09/14/2022 |
10-Q
| Quarterly Report for the period ended July 31, 2022 |
| 06/14/2022 |
10-Q
| Quarterly Report for the period ended April 30, 2022 |
| 03/16/2022 |
10-Q
| Quarterly Report for the period ended January 31, 2022 |
| 09/14/2021 |
10-Q
| Quarterly Report for the period ended July 31, 2021 |
| 06/14/2021 |
10-Q
| Quarterly Report for the period ended April 30, 2021 |
| 03/17/2021 |
10-Q
| Quarterly Report for the period ended January 31, 2021 |
| 12/17/2020 |
10-Q
| Quarterly Report for the period ended April 30, 2020 |
| 12/17/2020 |
10-Q
| Quarterly Report for the period ended January 31, 2020 |
| 10/16/2020 |
10-Q
| Quarterly Report for the period ended July 31, 2019 |
| 10/16/2020 |
10-Q
| Quarterly Report for the period ended April 30, 2019 |
| 10/16/2020 |
10-Q
| Quarterly Report for the period ended January 31, 2019 |
| 03/06/2020 |
10-Q
| Quarterly Report for the period ended July 31, 2018 |
| 03/06/2020 |
10-Q
| Quarterly Report for the period ended April 30, 2018 |
| 03/06/2020 |
10-Q
| Quarterly Report for the period ended January 31, 2018 |
| 09/19/2017 |
10-Q
| Quarterly Report for the period ended July 31, 2017 |
| 07/14/2017 |
10-Q
| Quarterly Report for the period ended April 30, 2017 |
| 07/12/2017 |
10-Q
| Quarterly Report for the period ended January 31, 2017 |
| 10/26/2016 |
10-Q
| Quarterly Report for the period ended July 31, 2016 |
| 08/22/2016 |
10-Q
| Quarterly Report for the period ended April 30, 2016 |
| 08/08/2016 |
10-Q
| Quarterly Report for the period ended January 31, 2016 |
| 10/29/2015 |
10-Q
| Quarterly Report for the period ended July 31, 2015 |
| 06/15/2015 |
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 |
| 09/15/2014 |
10-Q
| Quarterly Report for the period ended July 31, 2014 |
| 08/08/2014 |
10-Q/A
| Quarterly Report for the period ended July 31, 2013 [amend] |
| 06/23/2014 |
10-Q
| Quarterly Report for the period ended April 30, 2014 |
| 03/17/2014 |
10-Q
| Quarterly Report for the period ended January 31, 2014 |
| 09/20/2013 |
10-Q
| Quarterly Report for the period ended July 31, 2013 |
| 06/14/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 03/18/2013 |
10-Q
| Quarterly Report for the period ended January 31, 2013 |