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| Filings | Description | Filing Date | Downloads |
| 4 | Statement of Changes in Beneficial Ownership | June 28, 2012 | |
| 4 | Statement of Changes in Beneficial Ownership | May 18, 2012 | |
| DEF 14A | Proxy Statement (definitive) | May 17, 2012 | |
| 10-Q | Quarterly Report | May 10, 2012 | |
| 4 | Statement of Changes in Beneficial Ownership | May 09, 2012 | |
| 4 | Statement of Changes in Beneficial Ownership | May 08, 2012 | |
| 4 | Statement of Changes in Beneficial Ownership | May 08, 2012 | |
| 4 | Statement of Changes in Beneficial Ownership | May 08, 2012 | |
| 4 | Statement of Changes in Beneficial Ownership | April 04, 2012 | |
| 8-K/A | Amended Current report filing | March 30, 2012 | |
| 8-K | Current report filing | March 02, 2012 | |
| SC 13G/A | Amended Statement of Ownership | February 14, 2012 | |
| SC 13G/A | Amended Statement of Ownership | February 14, 2012 | |
| 10-Q/A | Amended Quarterly Report | February 08, 2012 | |
| 10-Q | Quarterly Report | February 07, 2012 | |
| 8-K | Current report filing | January 18, 2012 | |
| 8-K/A | Amended Current report filing | January 03, 2012 | |
| 10-K | Annual Report | December 14, 2011 | |
| 8-K | Current report filing | November 22, 2011 | |
| 8-K | Current report filing | August 29, 2011 |