| Date Filed | Type | Description |
| 05/04/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 05/04/2015 |
10-KT/A
| Form 10-KT/A - Transition reports [Rule 13a-10 or 15d-10] [Amend] |
| 03/19/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 02/24/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/26/2014 |
10-KT/A
| Form 10-KT/A - Transition reports [Rule 13a-10 or 15d-10] [Amend] |
| 02/27/2014 |
10-KT
| Form 10-KT - Transition reports [Rule 13a-10 or 15d-10] |
| 04/30/2013 |
10-K/A
| Annual Report for the period ended January 31, 2013 [amend] |
| 03/27/2013 |
10-K
| Annual Report for the period ended January 31, 2013 |
| 04/02/2012 |
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 |
| 09/17/2010 |
10-K/A
| Annual Report for the period ended January 31, 2010 [amend] |
| 04/28/2010 |
10-K/A
| Annual Report for the period ended January 31, 2010 [amend] |
| 03/30/2010 |
10-K
| Annual Report for the period ended January 31, 2010 |
| 09/25/2009 |
10-K/A
| Annual Report for the period ended January 31, 2009 [amend] |
| 03/30/2009 |
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 |
| 03/27/2007 |
10-K
| Annual Report for the period ended January 31, 2007 |
| 03/28/2006 |
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 |
| 03/31/2004 |
10-K
| Annual Report for the period ended January 31, 2004 |
| 04/10/2003 |
10-K
| Annual Report for the period ended January 31, 2003 |
| 05/01/2002 |
10-K/A
| Annual Report for the period ended January 31, 2002 [amend] |
| 04/26/2002 |
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 |
| 04/25/2000 |
10-K
| Annual Report for the period ended January 31, 2000 |
| 04/27/1999 |
10-K
| Annual Report for the period ended January 31, 1999 |
| 04/30/1998 |
10-K
| Annual Report for the period ended January 31, 1998 |
| 04/30/1997 |
10-K
| Annual Report for the period ended January 31, 1997 |
| 04/30/1996 |
10-K
| Annual Report for the period ended January 31, 1996 |
| 04/28/1995 |
10-K
| Annual Report for the period ended January 31, 1995 |
| 04/28/1994 |
10-K
| Annual Report for the period ended January 31, 1994 |