| Date Filed | Type | Description |
| 08/26/2019 |
10-K/A
| Annual Report for the period ended April 28, 2019 [amend] |
| 06/14/2019 |
10-K
| Annual Report for the period ended April 28, 2019 |
| 06/15/2018 |
10-K
| Annual Report for the period ended April 29, 2018 |
| 06/16/2017 |
10-K
| Annual Report for the period ended April 30, 2017 |
| 06/17/2016 |
10-K
| Annual Report for the period ended May 1, 2016 |
| 06/19/2015 |
10-K
| Annual Report for the period ended May 3, 2015 |
| 06/26/2014 |
10-K
| Annual Report for the period ended April 27, 2014 |
| 06/24/2013 |
10-K
| Annual Report for the period ended April 28, 2013 |
| 10/05/2012 |
10-K/A
| Annual Report for the period ended April 30, 2012 [amend] |
| 08/23/2012 |
10-K/A
| Annual Report for the period ended April 30, 2012 [amend] |
| 06/29/2012 |
10-K
| Annual Report for the period ended April 30, 2012 |
| 08/29/2011 |
10-K/A
| Annual Report for the period ended April 30, 2011 [amend] |
| 06/28/2011 |
10-K
| Annual Report for the period ended April 30, 2011 |
| 08/27/2010 |
10-K/A
| Annual Report for the period ended April 30, 2010 [amend] |
| 07/01/2010 |
10-K
| Annual Report for the period ended April 30, 2010 |
| 08/28/2009 |
10-K/A
| Annual Report for the period ended April 30, 2009 [amend] |
| 07/09/2009 |
10-K
| Annual Report for the period ended April 30, 2009 |
| 06/30/2008 |
10-K
| Annual Report for the period ended April 30, 2008 |
| 12/04/2007 |
10-K
| Annual Report for the period ended April 30, 2007 |
| 07/14/2006 |
10-K
| Annual Report for the period ended April 30, 2006 |
| 07/29/2005 |
10-K
| Annual Report for the period ended April 30, 2005 |
| 02/10/2005 |
10-K/A
| Annual Report for the period ended April 30, 2004 [amend] |
| 08/27/2004 |
10-K/A
| Annual Report for the period ended April 30, 2004 [amend] |
| 07/14/2004 |
10-K
| Annual Report for the period ended April 30, 2004 |
| 07/29/2003 |
10-K
| Annual Report for the period ended April 30, 2003 |
| 07/29/2002 |
10-K
| Annual Report for the period ended April 30, 2002 |
| 07/18/2001 |
10-K
| Annual Report for the period ended April 30, 2001 |
| 12/08/2000 |
10-K/A
| Annual Report for the period ended April 30, 2000 [amend] |
| 07/31/2000 |
10-K
| Annual Report for the period ended April 30, 2000 |