| Date Filed | Type | Description |
| 02/10/2012 |
10-Q
| Quarterly Report for the period ended December 31, 2011 |
| 07/26/2011 |
10-Q
| Quarterly Report for the period ended June 30, 2011 |
| 05/12/2011 |
10-Q
| Quarterly Report for the period ended March 31, 2011 |
| 02/11/2011 |
10-Q
| Quarterly Report for the period ended December 31, 2010 |
| 08/11/2010 |
10-Q
| Quarterly Report for the period ended June 30, 2010 |
| 04/29/2010 |
10-Q
| Quarterly Report for the period ended March 31, 2010 |
| 02/09/2010 |
10-Q
| Quarterly Report for the period ended December 31, 2009 |
| 08/11/2009 |
10-Q
| Quarterly Report for the period ended June 30, 2009 |
| 05/12/2009 |
10-Q
| Quarterly Report for the period ended March 31, 2009 |
| 02/17/2009 |
10-Q
| Quarterly Report for the period ended December 31, 2008 |
| 08/14/2008 |
10-Q
| Quarterly Report for the period ended June 30, 2008 |
| 05/15/2008 |
10-Q
| Quarterly Report for the period ended March 31, 2008 |
| 05/15/2008 |
10-Q
| Quarterly Report for the period ended June 30, 2007 |
| 02/14/2008 |
10-Q
| Quarterly Report for the period ended December 31, 2007 |
| 08/09/2005 |
10-Q
| Quarterly Report for the period ended June 30, 2005 |
| 05/05/2005 |
10-Q
| Quarterly Report for the period ended March 31, 2005 |
| 02/09/2005 |
10-Q
| Quarterly Report for the period ended December 31, 2004 |
| 08/16/2004 |
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 |
| 02/17/2004 |
10-Q
| Quarterly Report for the period ended December 31, 2003 |
| 08/08/2003 |
10-Q
| Quarterly Report for the period ended June 30, 2003 |
| 05/13/2003 |
10-Q
| Quarterly Report for the period ended March 31, 2003 |
| 02/13/2003 |
10-Q
| Quarterly Report for the period ended December 31, 2002 |
| 08/06/2002 |
10-Q
| Quarterly Report for the period ended June 30, 2002 |
| 05/06/2002 |
10-Q
| Quarterly Report for the period ended March 31, 2001 |
| 02/14/2002 |
10-Q
| Quarterly Report for the period ended December 31, 2001 |
| 10/15/2001 |
10-Q
| Quarterly Report for the period ended August 31, 2001 |