| 20-F | Registration of securities of foreign private issuers pursuant to section 12(b) or (g) | Apr 23, 2013 |  Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in HTML. Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in DOC file. Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in PDF file. Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in XLS file. |
| SC 13D/A | Amendment to a SC 13D filing | Jan 8, 2013 | Open Amendment to a SC 13D filing in HTML.Open Amendment to a SC 13D filing in DOC file.Open Amendment to a SC 13D filing in PDF file.Open Amendment to a SC 13D filing in XLS file. |
| 15-15D | Certification of Termination of Registration | Jan 2, 2013 | Open Certification of Termination of Registration in HTML.Open Certification of Termination of Registration in DOC file.Open Certification of Termination of Registration in PDF file.Open Certification of Termination of Registration in XLS file. |