| Date Filed | Type | Description |
| 06/05/2018 |
10-Q
| Quarterly Report for the period ended April 30, 2018 |
| 12/05/2017 |
10-Q
| Quarterly Report for the period ended October 31, 2017 |
| 09/11/2017 |
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 |
| 12/08/2016 |
10-Q
| Quarterly Report for the period ended October 31, 2016 |
| 09/06/2016 |
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 |
| 12/09/2015 |
10-Q
| Quarterly Report for the period ended October 31, 2015 |
| 09/08/2015 |
10-Q
| Quarterly Report for the period ended July 31, 2015 |
| 06/08/2015 |
10-Q
| Quarterly Report for the period ended April 30, 2015 |
| 12/10/2014 |
10-Q
| Quarterly Report for the period ended October 31, 2014 |
| 09/09/2014 |
10-Q
| Quarterly Report for the period ended July 31, 2014 |
| 06/16/2014 |
10-Q
| Quarterly Report for the period ended April 30, 2014 |
| 12/09/2013 |
10-Q
| Quarterly Report for the period ended October 31, 2013 |
| 09/09/2013 |
10-Q
| Quarterly Report for the period ended July 31, 2013 |
| 06/10/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 12/10/2012 |
10-Q
| Quarterly Report for the period ended October 31, 2012 |
| 09/10/2012 |
10-Q
| Quarterly Report for the period ended July 31, 2012 |
| 06/07/2012 |
10-Q
| Quarterly Report for the period ended April 30, 2012 |
| 12/08/2011 |
10-Q
| Quarterly Report for the period ended October 31, 2011 |
| 09/07/2011 |
10-Q
| Quarterly Report for the period ended July 31, 2011 |
| 06/09/2011 |
10-Q
| Quarterly Report for the period ended April 30, 2011 |
| 12/08/2010 |
10-Q
| Quarterly Report for the period ended October 31, 2010 |
| 09/02/2010 |
10-Q
| Quarterly Report for the period ended July 31, 2010 |
| 06/02/2010 |
10-Q
| Quarterly Report for the period ended April 30, 2010 |
| 12/07/2009 |
10-Q
| Quarterly Report for the period ended October 31, 2009 |
| 09/04/2009 |
10-Q
| Quarterly Report for the period ended July 31, 2009 |
| 06/02/2009 |
10-Q
| Quarterly Report for the period ended April 30, 2009 |
| 12/09/2008 |
10-Q
| Quarterly Report for the period ended October 31, 2008 |
| 09/05/2008 |
10-Q
| Quarterly Report for the period ended July 31, 2008 |
| 06/09/2008 |
10-Q
| Quarterly Report for the period ended April 30, 2008 |
| 12/10/2007 |
10-Q
| Quarterly Report for the period ended October 31, 2007 |
| 09/10/2007 |
10-Q
| Quarterly Report for the period ended July 31, 2007 |
| 06/11/2007 |
10-Q
| Quarterly Report for the period ended April 30, 2007 |
|