Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001432093-12-000177-index.html | 2012-03-28 18:14:31 | |
| 0001432093-12-000177.txt | 2012-03-28 18:14:31 | |
 0001432093-12-000177-xbrl.zip | 51211 | 2012-03-28 18:14:31 |
| ex21-1.htm | 3923 | 2012-03-28 18:14:31 |
| ex31-1.htm | 19974 | 2012-03-28 18:14:31 |
| ex31-2.htm | 20819 | 2012-03-28 18:14:31 |
| ex32-1.htm | 9252 | 2012-03-28 18:14:31 |
| ex32-2.htm | 8678 | 2012-03-28 18:14:31 |
| FilingSummary.xml | 9400 | 2012-03-28 18:14:31 |
| Financial_Report.xls | 331266 | 2012-03-28 18:14:31 |
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| R10.htm | 31545 | 2012-03-28 18:14:31 |
| R11.htm | 9143 | 2012-03-28 18:14:31 |
| R12.htm | 49527 | 2012-03-28 18:14:31 |
| R13.htm | 85606 | 2012-03-28 18:14:31 |
| R14.htm | 40504 | 2012-03-28 18:14:31 |
| R15.htm | 7579 | 2012-03-28 18:14:31 |
| R16.htm | 14364 | 2012-03-28 18:14:31 |
| R17.htm | 8838 | 2012-03-28 18:14:31 |
| R18.htm | 40355 | 2012-03-28 18:14:31 |
| R19.htm | 6713 | 2012-03-28 18:14:31 |
| R2.htm | 114698 | 2012-03-28 18:14:31 |
| R3.htm | 36007 | 2012-03-28 18:14:31 |
| R4.htm | 76440 | 2012-03-28 18:14:31 |
| R5.htm | 43286 | 2012-03-28 18:14:31 |
| R6.htm | 111545 | 2012-03-28 18:14:31 |
| R7.htm | 10620 | 2012-03-28 18:14:31 |
| R8.htm | 34128 | 2012-03-28 18:14:31 |
| R9.htm | 13506 | 2012-03-28 18:14:31 |
| report.css | 2721 | 2012-03-28 18:14:31 |
| Show.js | 6423 | 2012-03-28 18:14:31 |
| vertex10k123111.htm | 1772343 | 2012-03-28 18:14:31 |
| vtnrpk-20111231.xml | 371460 | 2012-03-28 18:14:31 |
| vtnrpk-20111231.xsd | 13848 | 2012-03-28 18:14:31 |
| vtnrpk-20111231_cal.xml | 25849 | 2012-03-28 18:14:31 |
| vtnrpk-20111231_def.xml | 38397 | 2012-03-28 18:14:31 |
| vtnrpk-20111231_lab.xml | 113404 | 2012-03-28 18:14:31 |
| vtnrpk-20111231_pre.xml | 78757 | 2012-03-28 18:14:31 |