Date Form Description XBRL Pages
02/16/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
02/16/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
02/16/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
02/16/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
01/20/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
01/20/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
01/20/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
01/20/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
01/20/12 4 Form 4: Statement of changes in beneficial ownership of securities 1
11/16/11 4 Form 4: Statement of changes in beneficial ownership of securities 1