| Date Filed | Type | Description |
| 03/20/2013 |
10-Q/A
| Quarterly Report for the period ended January 31, 2013 [amend] |
| 03/19/2013 |
10-Q
| Quarterly Report for the period ended January 31, 2013 |
| 12/14/2012 |
10-Q
| Quarterly Report for the period ended October 31, 2012 |
| 06/20/2012 |
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 |
| 01/10/2012 |
10-Q/A
| Quarterly Report for the period ended October 31, 2011 [amend] |
| 12/15/2011 |
10-Q
| Quarterly Report for the period ended October 31, 2011 |
| 06/17/2011 |
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 |
| 12/14/2010 |
10-Q
| Quarterly Report for the period ended October 31, 2010 |
| 06/14/2010 |
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 |
| 12/15/2009 |
10-Q
| Quarterly Report for the period ended October 31, 2009 |
| 06/15/2009 |
10-Q
| Quarterly Report for the period ended April 30, 2009 |
| 03/13/2009 |
10-Q
| Quarterly Report for the period ended January 31, 2009 |
| 12/15/2008 |
10-Q
| Quarterly Report for the period ended October 31, 2008 |
| 06/16/2008 |
10-Q
| Quarterly Report for the period ended April 30, 2008 |
| 03/07/2008 |
10-Q
| Quarterly Report for the period ended January 31, 2008 |
| 12/10/2007 |
10-Q
| Quarterly Report for the period ended October 31, 2007 |
| 06/13/2007 |
10-Q
| Quarterly Report for the period ended April 30, 2007 |
| 03/14/2007 |
10-Q
| Quarterly Report for the period ended January 31, 2007 |
| 12/12/2006 |
10-Q
| Quarterly Report for the period ended October 31, 2006 |