| Date | Form | Description | XBRL | |
|---|---|---|---|---|
| 04/30/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 04/30/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 04/30/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 04/30/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 04/30/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 04/30/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 04/25/12 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) |
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| 04/25/12 | 8-K | Current report filing |
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| 03/30/12 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material |
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| 03/30/12 | DEF 14A | Definitive proxy statements |
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