Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000070415-17-000061-index.html | 2017-05-02 12:29:05 | |
| 0000070415-17-000061.txt | 2017-05-02 12:29:05 | |
 0000070415-17-000061-xbrl.zip | 120446 | 2017-05-02 12:29:05 |
| exhibit311-gpx33117.htm | 12592 | 2017-05-02 12:29:05 |
| exhibit312-gpx33117.htm | 13523 | 2017-05-02 12:29:05 |
| exhibit321-gpx33117.htm | 8814 | 2017-05-02 12:29:05 |
| FilingSummary.xml | 23055 | 2017-05-02 12:29:05 |
| Financial_Report.xlsx | 47334 | 2017-05-02 12:29:05 |
| gpx-20170331.htm | 649369 | 2017-05-02 12:29:05 |
| gpx-20170331.xml | 759938 | 2017-05-02 12:29:05 |
| gpx-20170331.xsd | 31872 | 2017-05-02 12:29:05 |
| gpx-20170331_cal.xml | 52778 | 2017-05-02 12:29:05 |
| gpx-20170331_def.xml | 149897 | 2017-05-02 12:29:05 |
| gpx-20170331_lab.xml | 449773 | 2017-05-02 12:29:05 |
| gpx-20170331_pre.xml | 245848 | 2017-05-02 12:29:05 |
| R1.htm | 21768 | 2017-05-02 12:29:05 |
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| R2.htm | 70894 | 2017-05-02 12:29:05 |
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| R27.htm | 23957 | 2017-05-02 12:29:05 |
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| R8.htm | 13227 | 2017-05-02 12:29:05 |
| R9.htm | 12141 | 2017-05-02 12:29:05 |
| report.css | 2767 | 2017-05-02 12:29:05 |
| Show.js | 1410 | 2017-05-02 12:29:05 |