| Date Filed | Type | Description |
| 06/08/2018 |
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 |
| 09/07/2017 |
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 |
| 03/09/2017 |
10-Q
| Quarterly Report for the period ended January 31, 2017 |
| 09/01/2016 |
10-Q
| Quarterly Report for the period ended July 31, 2016 |
| 06/07/2016 |
10-Q
| Quarterly Report for the period ended April 30, 2016 |
| 03/10/2016 |
10-Q
| Quarterly Report for the period ended January 31, 2016 |
| 09/03/2015 |
10-Q
| Quarterly Report for the period ended July 31, 2015 |
| 06/04/2015 |
10-Q
| Quarterly Report for the period ended April 30, 2015 |
| 03/10/2015 |
10-Q
| Quarterly Report for the period ended January 31, 2015 |
| 09/04/2014 |
10-Q
| Quarterly Report for the period ended July 31, 2014 |
| 06/05/2014 |
10-Q
| Quarterly Report for the period ended April 30, 2014 |
| 03/11/2014 |
10-Q
| Quarterly Report for the period ended January 31, 2014 |
| 09/05/2013 |
10-Q
| Quarterly Report for the period ended July 31, 2013 |
| 06/05/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 03/11/2013 |
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 |
| 04/10/2012 |
10-Q/A
| Quarterly Report for the period ended January 31, 2012 [amend] |
| 03/09/2012 |
10-Q
| Quarterly Report for the period ended January 31, 2012 |
| 09/09/2011 |
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 |
| 03/10/2011 |
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 |
| 03/05/2010 |
10-Q
| Quarterly Report for the period ended January 31, 2010 |
| 09/04/2009 |
10-Q
| Quarterly Report for the period ended July 31, 2009 |
| 06/04/2009 |
10-Q
| Quarterly Report for the period ended April 30, 2009 |
| 03/06/2009 |
10-Q
| Quarterly Report for the period ended January 31, 2009 |
| 09/09/2008 |
10-Q
| Quarterly Report for the period ended July 31, 2008 |
| 08/19/2008 |
10-Q
| Quarterly Report for the period ended April 30, 2008 |
| 08/19/2008 |
10-Q
| Quarterly Report for the period ended January 31, 2008 |
| 08/19/2008 |
10-Q/A
| Quarterly Report for the period ended July 31, 2007 [amend] |
|