| Date Filed | Type | Description |
| 09/12/2013 |
10-Q
| Quarterly Report for the period ended July 31, 2013 |
| 06/11/2013 |
10-Q
| Quarterly Report for the period ended April 30, 2013 |
| 12/11/2012 |
10-Q
| Quarterly Report for the period ended October 31, 2012 |
| 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 |
| 12/14/2011 |
10-Q
| Quarterly Report for the period ended October 31, 2011 |
| 09/14/2011 |
10-Q
| Quarterly Report for the period ended July 31, 2011 |
| 06/13/2011 |
10-Q
| Quarterly Report for the period ended April 30, 2011 |
| 12/14/2010 |
10-Q
| Quarterly Report for the period ended October 31, 2010 |
| 09/13/2010 |
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 |
| 12/14/2009 |
10-Q
| Quarterly Report for the period ended October 31, 2009 |
| 09/14/2009 |
10-Q
| Quarterly Report for the period ended July 31, 2009 |
| 06/15/2009 |
10-Q
| Quarterly Report for the period ended April 30, 2009 |
| 12/15/2008 |
10-Q
| Quarterly Report for the period ended October 31, 2008 |
| 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 |
| 12/13/2007 |
10-Q
| Quarterly Report for the period ended October 31, 2007 |
| 09/13/2007 |
10-Q
| Quarterly Report for the period ended July 31, 2007 |
| 06/13/2007 |
10-Q
| Quarterly Report for the period ended April 30, 2007 |
| 12/13/2006 |
10-Q
| Quarterly Report for the period ended October 31, 2006 |
| 09/13/2006 |
10-Q
| Quarterly Report for the period ended July 31, 2006 |
| 06/14/2006 |
10-Q
| Quarterly Report for the period ended April 30, 2006 |
| 12/13/2005 |
10-Q
| Quarterly Report for the period ended October 31, 2005 |
| 09/14/2005 |
10-Q
| Quarterly Report for the period ended July 31, 2005 |
| 06/13/2005 |
10-Q
| Quarterly Report for the period ended April 30, 2005 |
| 12/14/2004 |
10-Q
| Quarterly Report for the period ended October 31, 2004 |
| 09/13/2004 |
10-Q
| Quarterly Report for the period ended July 31, 2004 |
| 06/10/2004 |
10-Q
| Quarterly Report for the period ended April 30, 2004 |
| 12/10/2003 |
10-Q
| Quarterly Report for the period ended October 31, 2003 |
| 09/11/2003 |
10-Q
| Quarterly Report for the period ended July 31, 2003 |
| 06/12/2003 |
10-Q
| Quarterly Report for the period ended April 30, 2003 |
| 12/13/2002 |
10-Q
| Quarterly Report for the period ended October 31, 2002 |
| 09/12/2002 |
10-Q
| Quarterly Report for the period ended July 31, 2002 |
|