| Date Filed | Type | Description |
| 09/13/2012 |
10-Q
| Quarterly Report for the period ended July 31, 2012 |
| 06/13/2012 |
10-Q
| Quarterly Report for the period ended April 30, 2012 |
| 03/16/2012 |
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 |
| 06/10/2010 |
10-Q
| Quarterly Report for the period ended April 30, 2010 |
| 03/17/2010 |
10-Q
| Quarterly Report for the period ended January 31, 2010 |
| 09/09/2009 |
10-Q
| Quarterly Report for the period ended July 31, 2009 |
| 06/09/2009 |
10-Q
| Quarterly Report for the period ended April 30, 2009 |
| 03/12/2009 |
10-Q
| Quarterly Report for the period ended January 31, 2009 |
| 09/12/2008 |
10-Q
| Quarterly Report for the period ended July 31, 2008 |
| 06/16/2008 |
10-Q
| Quarterly Report for the period ended April 30, 2008 |
| 03/13/2008 |
10-Q
| Quarterly Report for the period ended January 31, 2008 |
| 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 |
| 03/16/2007 |
10-Q
| Quarterly Report for the period ended January 31, 2007 |
| 09/14/2006 |
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 |
| 03/17/2006 |
10-Q
| Quarterly Report for the period ended January 31, 2006 |
| 05/11/2005 |
10-Q/A
| Quarterly Report for the period ended July 31, 2004 [amend] |
| 05/11/2005 |
10-Q/A
| Quarterly Report for the period ended April 30, 2004 [amend] |
| 04/04/2005 |
10-Q/A
| Quarterly Report for the period ended July 31, 2004 [amend] |
| 04/04/2005 |
10-Q/A
| Quarterly Report for the period ended April 30, 2004 [amend] |
| 09/14/2004 |
10-Q
| Quarterly Report for the period ended July 31, 2004 |
| 09/14/2004 |
10-Q/A
| Quarterly Report for the period ended April 30, 2004 [amend] |
| 06/14/2004 |
10-Q
| Quarterly Report for the period ended April 30, 2004 |
| 03/16/2004 |
10-Q
| Quarterly Report for the period ended January 31, 2004 |
| 09/15/2003 |
10-Q
| Quarterly Report for the period ended July 31, 2003 |
| 06/17/2003 |
10-Q/A
| Quarterly Report for the period ended April 30, 2003 [amend] |
| 06/16/2003 |
10-Q
| Quarterly Report for the period ended April 30, 2003 |
| 03/17/2003 |
10-Q
| Quarterly Report for the period ended January 31, 2003 |
| 09/11/2002 |
10-Q
| Quarterly Report for the period ended July 31, 2002 |
|