| Filing | Description | Date Filed | Size ![]() |
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|---|---|---|---|---|---|---|---|
| 8-K | current report | Nov 9, 2012 | 30.9 KB |
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| 8-K | current report | Mar 8, 1996 | 0.0 KB | ||||
| 425 | other | Sep 14, 2011 | 41.8 KB |
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| SC 13D | general statement of beneficial ownership | Oct 6, 1995 | 79.4 KB |
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| S-4MEF | registration statement | Apr 18, 2001 | 0.0 KB | ||||
| 10-Q | quarterly report | Aug 11, 1995 | 0.0 KB | ||||
| SC 13G/A | amended statement of beneficial ownership | Jan 22, 2008 | 40.5 KB |
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| 8-K | current report | Jul 17, 2007 | 56.2 KB |
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| S-8 POS | registration statement | Nov 29, 2001 | 0.0 KB | ||||
| SC TO-T/A | other | Dec 23, 2008 | 25.5 KB |
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| 425 | other | May 23, 2011 | 37.9 KB |
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| 10-Q | quarterly report | Nov 13, 1995 | 0.0 KB | ||||
| 10-Q | quarterly report | Aug 7, 1998 | 0.0 KB | ||||
| 8-K | current report | Jul 19, 2011 | 30.8 KB |
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| 8-K | current report | Apr 9, 2012 | 28.2 KB |
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| 10-Q | quarterly report | Nov 7, 1997 | 0.0 KB | ||||
| SC TO-T/A | other | Dec 17, 2008 | 23.9 KB |
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| SC TO-T/A | other | Jun 23, 2009 | 25.1 KB |
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| 425 | other | May 4, 2011 | 49.5 KB |
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| 425 | other | Oct 19, 2011 | 46.1 KB |
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| S-8 | registration statement | May 2, 1995 | 0.0 KB | ||||
| SC TO-T/A | other | Jul 10, 2009 | 26.3 KB |
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| 8-K | current report | Oct 1, 2010 | 38.0 KB |
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| 8-K | current report | Jun 14, 2011 | 32.6 KB |
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| 4 | weldon, william c | May 28, 2008 | 36.9 KB |
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| 8-K | current report | Mar 10, 2011 | 35.1 KB |
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| SC TO-T/A | other | Dec 1, 2008 | 27.2 KB |
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| 10-Q | quarterly report | May 14, 2001 | 0.0 KB | ||||
| 10-Q | quarterly report | Aug 8, 1997 | 0.0 KB | ||||
| 11-K | annual report of employee stock purchase | Jun 28, 2005 | 87.7 KB |
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| 4 | langbo, arnold g | Feb 12, 2003 | 74.0 KB |
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| 425 | other | Nov 29, 2011 | 36.1 KB |
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| 10-Q | quarterly report | May 15, 2000 | 0.0 KB | ||||
| S-8 | registration statement | Nov 8, 2005 | 81.9 KB |
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| 10-Q | quarterly report | May 14, 2002 | 0.0 KB | ||||
| 8-K | current report | Oct 16, 2007 | 61.4 KB |
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| 11-K | annual report of employee stock purchase | Jun 28, 2006 | 83.8 KB |
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| 8-K | current report | Dec 3, 2012 | 37.8 KB |
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| 8-K | current report | Apr 8, 2011 | 36.4 KB |
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| SC TO-C | other | May 22, 2009 | 37.3 KB |
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| S-8 | registration statement | Jun 14, 2000 | 0.0 KB | ||||
| SC TO-T/A | other | Dec 17, 2008 | 29.6 KB |
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| 11-K | annual report of employee stock purchase | Jun 22, 2004 | 93.0 KB |
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| SC TO-C | other | Dec 2, 2008 | 35.5 KB |
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| SC TO-C | other | Nov 24, 2008 | 37.3 KB |
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| 10-Q | quarterly report | May 17, 1999 | 0.0 KB | ||||
| 425 | other | Jun 23, 2011 | 59.6 KB |
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| S-8 | registration statement | Jun 11, 2003 | 91.3 KB |
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| 8-K | current report | Jul 12, 2010 | 45.1 KB |
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| SC 13G/A | amended statement of beneficial ownership | Feb 12, 2013 | 28.2 KB |
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