| Date Filed | Type | Description |
| 06/08/2015 |
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 |
| 09/04/2014 |
10-Q
| Quarterly Report for the period ended July 31, 2014 |
| 06/06/2014 |
10-Q
| Quarterly Report for the period ended April 30, 2014 |
| 03/10/2014 |
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 |
| 06/07/2013 |
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 |
| 09/06/2012 |
10-Q
| Quarterly Report for the period ended July 31, 2012 |
| 06/08/2012 |
10-Q
| Quarterly Report for the period ended April 30, 2012 |
| 03/08/2012 |
10-Q
| Quarterly Report for the period ended January 31, 2012 |
| 09/06/2011 |
10-Q
| Quarterly Report for the period ended July 31, 2011 |
| 06/07/2011 |
10-Q
| Quarterly Report for the period ended April 30, 2011 |
| 03/11/2011 |
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 |
| 09/08/2009 |
10-Q
| Quarterly Report for the period ended July 31, 2009 |
| 06/08/2009 |
10-Q
| Quarterly Report for the period ended April 30, 2009 |
| 03/11/2009 |
10-Q
| Quarterly Report for the period ended January 31, 2009 |
| 09/05/2008 |
10-Q
| Quarterly Report for the period ended July 31, 2008 |
| 06/06/2008 |
10-Q
| Quarterly Report for the period ended April 30, 2008 |
| 03/11/2008 |
10-Q
| Quarterly Report for the period ended January 31, 2008 |
| 09/06/2007 |
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 |
| 03/12/2007 |
10-Q
| Quarterly Report for the period ended January 31, 2007 |
| 09/07/2006 |
10-Q
| Quarterly Report for the period ended July 31, 2006 |
| 06/08/2006 |
10-Q
| Quarterly Report for the period ended April 30, 2006 |
| 03/10/2006 |
10-Q
| Quarterly Report for the period ended January 31, 2006 |
| 09/08/2005 |
10-Q
| Quarterly Report for the period ended July 31, 2005 |
| 06/09/2005 |
10-Q
| Quarterly Report for the period ended April 30, 2005 |
| 03/10/2005 |
10-Q
| Quarterly Report for the period ended January 31, 2005 |
| 09/13/2004 |
10-Q
| Quarterly Report for the period ended July 31, 2004 |
| 06/08/2004 |
10-Q
| Quarterly Report for the period ended April 30, 2004 |
|