| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/30/12 | ARS | Form ARS: Annual report to security holders | 100 | |
| 04/26/12 | 8-K | Form 8-K: Current report filing | 7 | |
| 04/19/12 | DEF 14A | Form DEF 14A: Definitive proxy statements | 39 | |
| 04/06/12 | SC 13D/A | Form SC 13D/A: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 17 | |
| 04/04/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 03/30/12 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 2 | |
| 03/30/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/29/12 | 10-K | Form 10-K: Annual report pursuant to Section 13 and 15(d) |
|
106 |
| 03/28/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/28/12 | 144 | Form 144: Filing for proposed sale of securities under Rule 144 | 2 |