| Date Filed | Type | Description |
| 03/24/2021 |
10-K
| Annual Report for the period ended January 31, 2021 |
| 03/26/2020 |
10-K
| Annual Report for the period ended January 31, 2020 |
| 03/22/2019 |
10-K
| Annual Report for the period ended January 31, 2019 |
| 03/23/2018 |
10-K
| Annual Report for the period ended January 31, 2018 |
| 03/31/2017 |
10-K
| Annual Report for the period ended January 31, 2017 |
| 02/02/2017 |
10-K/A
| Annual Report for the period ended January 31, 2016 [amend] |
| 03/29/2016 |
10-K
| Annual Report for the period ended January 31, 2016 |
| 03/27/2015 |
10-K
| Annual Report for the period ended January 31, 2015 |
| 03/31/2014 |
10-K
| Annual Report for the period ended January 31, 2014 |
| 03/29/2013 |
10-K
| Annual Report for the period ended January 31, 2013 |
| 03/30/2012 |
10-K
| Annual Report for the period ended January 31, 2012 |
| 03/31/2011 |
10-K
| Annual Report for the period ended January 31, 2011 |
| 03/31/2010 |
10-K
| Annual Report for the period ended January 31, 2010 |
| 03/31/2009 |
10-K
| Annual Report for the period ended January 31, 2009 |
| 03/31/2008 |
10-K
| Annual Report for the period ended January 31, 2008 |
| 03/30/2007 |
10-K
| Annual Report for the period ended January 31, 2007 |
| 03/31/2006 |
10-K
| Annual Report for the period ended January 31, 2006 |
| 10/06/2005 |
10-K/A
| Annual Report for the period ended January 31, 2005 [amend] |
| 03/31/2005 |
10-K
| Annual Report for the period ended January 31, 2005 |
| 03/31/2004 |
10-K
| Annual Report for the period ended January 31, 2004 |
| 04/23/2003 |
10-K
| Annual Report for the period ended January 31, 2003 |
| 04/19/2002 |
10-K
| Annual Report for the period ended January 31, 2002 |
| 04/26/2001 |
10-K
| Annual Report for the period ended January 31, 2001 |
| 04/28/2000 |
10-K
| Annual Report for the period ended January 31, 2000 |
| 04/26/1999 |
10-K
| Annual Report for the period ended January 31, 1999 |
| 04/24/1998 |
10-K
| Annual Report for the period ended January 31, 1998 |
| 04/25/1997 |
10-K
| Annual Report for the period ended January 31, 1997 |
| 04/17/1996 |
10-K
| Annual Report for the period ended January 31, 1996 |