| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/12/07 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/12/07 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/12/07 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/12/07 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/12/07 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 4 | |
| 02/01/07 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 1 | |
| 01/23/07 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 7 | |
| 12/19/06 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/12/06 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/22/06 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |