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|---|---|---|
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| 0000070415-16-000162-index.html | 2016-04-28 11:45:39 | |
| 0000070415-16-000162.txt | 2016-04-28 11:45:39 | |
 0000070415-16-000162-xbrl.zip | 110504 | 2016-04-28 11:45:39 |
| exhibit101stip.htm | 86838 | 2016-04-28 11:45:39 |
| exhibit311-gpx33116.htm | 12595 | 2016-04-28 11:45:39 |
| exhibit312-gpx33116.htm | 13526 | 2016-04-28 11:45:39 |
| exhibit321-gpx33116.htm | 8817 | 2016-04-28 11:45:39 |
| FilingSummary.xml | 22490 | 2016-04-28 11:45:39 |
| Financial_Report.xlsx | 44382 | 2016-04-28 11:45:39 |
| gpx-20160331.htm | 592103 | 2016-04-28 11:45:39 |
| gpx-20160331.xml | 688589 | 2016-04-28 11:45:39 |
| gpx-20160331.xsd | 27758 | 2016-04-28 11:45:39 |
| gpx-20160331_cal.xml | 47882 | 2016-04-28 11:45:39 |
| gpx-20160331_def.xml | 138425 | 2016-04-28 11:45:39 |
| gpx-20160331_lab.xml | 407798 | 2016-04-28 11:45:39 |
| gpx-20160331_pre.xml | 224555 | 2016-04-28 11:45:39 |
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| R8.htm | 9108 | 2016-04-28 11:45:39 |
| R9.htm | 12140 | 2016-04-28 11:45:39 |
| report.css | 2767 | 2016-04-28 11:45:39 |
| Show.js | 1410 | 2016-04-28 11:45:39 |