| Date Filed | Type | Description |
| 09/14/2017 |
10-Q
| Quarterly Report for the period ended July 31, 2017 |
| 06/13/2017 |
10-Q
| Quarterly Report for the period ended April 30, 2017 |
| 03/15/2017 |
10-Q
| Quarterly Report for the period ended January 31, 2017 |
| 09/14/2016 |
10-Q
| Quarterly Report for the period ended July 31, 2016 |
| 06/14/2016 |
10-Q
| Quarterly Report for the period ended April 30, 2016 |
| 03/15/2016 |
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 |
| 06/15/2015 |
10-Q
| Quarterly Report for the period ended April 30, 2015 |
| 03/17/2015 |
10-Q
| Quarterly Report for the period ended January 31, 2015 |
| 09/11/2014 |
10-Q
| Quarterly Report for the period ended July 31, 2014 |
| 06/13/2014 |
10-Q
| Quarterly Report for the period ended April 30, 2014 |
| 03/13/2014 |
10-Q
| Quarterly Report for the period ended January 31, 2014 |
| 09/12/2013 |
10-Q
| Quarterly Report for the period ended July 31, 2013 |
| 06/12/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 03/13/2013 |
10-Q
| Quarterly Report for the period ended January 31, 2013 |
| 09/14/2012 |
10-Q
| Quarterly Report for the period ended July 31, 2012 |
| 06/14/2012 |
10-Q
| Quarterly Report for the period ended April 30, 2012 |
| 03/09/2012 |
10-Q
| Quarterly Report for the period ended January 31, 2012 |
| 09/14/2011 |
10-Q
| Quarterly Report for the period ended July 31, 2011 |
| 06/14/2011 |
10-Q
| Quarterly Report for the period ended April 30, 2011 |
| 03/17/2011 |
10-Q
| Quarterly Report for the period ended January 31, 2011 |
| 09/14/2010 |
10-Q
| Quarterly Report for the period ended July 31, 2010 |
| 06/14/2010 |
10-Q
| Quarterly Report for the period ended April 30, 2010 |
| 03/15/2010 |
10-Q
| Quarterly Report for the period ended January 31, 2010 |
| 09/14/2009 |
10-Q
| Quarterly Report for the period ended July 31, 2009 |
| 06/12/2009 |
10-Q
| Quarterly Report for the period ended April 30, 2009 |
| 03/17/2009 |
10-Q
| Quarterly Report for the period ended January 31, 2009 |
| 09/15/2008 |
10-Q
| Quarterly Report for the period ended July 31, 2008 |
| 06/13/2008 |
10-Q
| Quarterly Report for the period ended April 30, 2008 |
| 03/17/2008 |
10-Q
| Quarterly Report for the period ended January 31, 2008 |
| 11/14/2001 |
10-Q
| Quarterly Report for the period ended September 30, 2001 |
| 08/14/2001 |
10-Q
| Quarterly Report for the period ended June 30, 2001 |
| 05/15/2001 |
10-Q
| Quarterly Report for the period ended April 1, 2001 |
| 11/14/2000 |
10-Q
| Quarterly Report for the period ended September 30, 2000 |
|