| Date Filed | Type | Description |
| 05/10/2012 |
10-Q
| Quarterly Report for the period ended March 31, 2012 |
| 02/08/2012 |
10-Q
| Quarterly Report for the period ended December 31, 2011 |
| 08/04/2011 |
10-Q
| Quarterly Report for the period ended June 30, 2011 |
| 05/10/2011 |
10-Q
| Quarterly Report for the period ended March 31, 2011 |
| 02/04/2011 |
10-Q
| Quarterly Report for the period ended December 31, 2010 |
| 08/05/2010 |
10-Q
| Quarterly Report for the period ended June 30, 2010 |
| 05/10/2010 |
10-Q
| Quarterly Report for the period ended March 31, 2010 |
| 02/08/2010 |
10-Q
| Quarterly Report for the period ended December 31, 2009 |
| 08/04/2009 |
10-Q
| Quarterly Report for the period ended June 30, 2009 |
| 05/06/2009 |
10-Q
| Quarterly Report for the period ended March 31, 2009 |
| 02/04/2009 |
10-Q
| Quarterly Report for the period ended December 31, 2008 |
| 07/29/2008 |
10-Q
| Quarterly Report for the period ended June 30, 2008 |
| 05/09/2008 |
10-Q
| Quarterly Report for the period ended March 31, 2008 |
| 01/28/2008 |
10-Q
| Quarterly Report for the period ended December 31, 2007 |
| 07/30/2007 |
10-Q
| Quarterly Report for the period ended June 30, 2007 |
| 04/30/2007 |
10-Q
| Quarterly Report for the period ended March 31, 2007 |
| 01/29/2007 |
10-Q
| Quarterly Report for the period ended December 31, 2006 |
| 08/01/2006 |
10-Q
| Quarterly Report for the period ended June 30, 2006 |
| 05/03/2006 |
10-Q
| Quarterly Report for the period ended March 31, 2006 |
| 01/30/2006 |
10-Q
| Quarterly Report for the period ended December 31, 2005 |
| 08/03/2005 |
10-Q
| Quarterly Report for the period ended June 30, 2005 |
| 05/04/2005 |
10-Q
| Quarterly Report for the period ended March 31, 2005 |
| 02/02/2005 |
10-Q
| Quarterly Report for the period ended December 31, 2004 |
| 08/02/2004 |
10-Q
| Quarterly Report for the period ended June 30, 2004 |
| 05/11/2004 |
10-Q
| Quarterly Report for the period ended March 31, 2004 |
| 02/10/2004 |
10-Q
| Quarterly Report for the period ended December 31, 2003 |
| 08/13/2003 |
10-Q
| Quarterly Report for the period ended June 30, 2003 |
| 05/14/2003 |
10-Q
| Quarterly Report for the period ended March 31, 2003 |
| 02/14/2003 |
10-Q
| Quarterly Report for the period ended December 31, 2002 |
| 08/13/2002 |
10-Q
| Quarterly Report for the period ended June 30, 2002 |
| 05/14/2002 |
10-Q
| Quarterly Report for the period ended March 31, 2002 |
| 02/14/2002 |
10-Q
| Quarterly Report for the period ended December 31, 2001 |
| 08/13/2001 |
10-Q
| Quarterly Report for the period ended June 30, 2001 |
| 05/15/2001 |
10-Q
| Quarterly Report for the period ended March 31, 2001 |
|