| Date Filed | Type | Description |
| 03/17/2023 |
10-K
| Annual Report for the period ended January 31, 2023 |
| 03/18/2022 |
10-K
| Annual Report for the period ended January 31, 2022 |
| 03/19/2021 |
10-K
| Annual Report for the period ended January 31, 2021 |
| 03/20/2020 |
10-K
| Annual Report for the period ended January 31, 2020 |
| 03/28/2019 |
10-K
| Annual Report for the period ended January 31, 2019 |
| 03/30/2018 |
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 |
| 03/30/2016 |
10-K
| Annual Report for the period ended January 31, 2016 |
| 04/01/2015 |
10-K
| Annual Report for the period ended January 31, 2015 |
| 03/21/2014 |
10-K
| Annual Report for the period ended January 31, 2014 |
| 03/26/2013 |
10-K
| Annual Report for the period ended January 31, 2013 |
| 03/27/2012 |
10-K
| Annual Report for the period ended January 31, 2012 |
| 03/30/2011 |
10-K
| Annual Report for the period ended January 31, 2011 |
| 03/30/2010 |
10-K
| Annual Report for the period ended January 31, 2010 |
| 04/01/2009 |
10-K
| Annual Report for the period ended April 1, 2009 |
| 03/31/2008 |
10-K
| Annual Report for the period ended January 31, 2008 |
| 03/27/2007 |
10-K
| Annual Report for the period ended January 31, 2007 |
| 03/29/2006 |
10-K
| Annual Report for the period ended January 31, 2006 |
| 03/31/2005 |
10-K
| Annual Report for the period ended January 31, 2005 |
| 08/26/2004 |
10-K/A
| Annual Report for the period ended January 31, 2004 [amend] |
| 04/09/2004 |
10-K
| Annual Report for the period ended January 31, 2004 |
| 04/15/2003 |
10-K
| Annual Report for the period ended January 31, 2003 |
| 04/15/2002 |
10-K
| Annual Report for the period ended January 31, 2002 |
| 04/17/2001 |
10-K/A
| Annual Report for the period ended January 31, 2001 [amend] |
| 04/10/2001 |
10-K
| Annual Report for the period ended January 31, 2001 |
| 04/17/2000 |
10-K
| Annual Report for the period ended January 31, 2000 |
| 04/19/1999 |
10-K
| Annual Report for the period ended January 31, 1999 |
| 04/23/1998 |
10-K
| Annual Report for the period ended January 31, 1998 |
| 06/20/1997 |
10-K/A
| Annual Report for the period ended January 31, 1997 [amend] |
| 04/21/1997 |
10-K
| Annual Report for the period ended January 31, 1997 |
| 04/23/1996 |
10-K
| Annual Report for the period ended January 31, 1996 |
| 04/27/1995 |
10-K
| Annual Report for the period ended January 31, 1995 |