Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070415-17-000089-index-headers.html | 2017-07-27 12:34:58 | |
| 0000070415-17-000089-index.html | 2017-07-27 12:34:58 | |
| 0000070415-17-000089.txt | 2017-07-27 12:34:58 | |
 0000070415-17-000089-xbrl.zip | 138246 | 2017-07-27 12:34:58 |
| exhibit311-gpx63017.htm | 12594 | 2017-07-27 12:34:58 |
| exhibit312-gpx63017.htm | 13525 | 2017-07-27 12:34:58 |
| exhibit321-gpx63017.htm | 8815 | 2017-07-27 12:34:58 |
| FilingSummary.xml | 23319 | 2017-07-27 12:34:58 |
| Financial_Report.xlsx | 51755 | 2017-07-27 12:34:58 |
| gpx-20170630.htm | 875521 | 2017-07-27 12:34:58 |
| gpx-20170630.xml | 1066392 | 2017-07-27 12:34:58 |
| gpx-20170630.xsd | 33032 | 2017-07-27 12:34:58 |
| gpx-20170630_cal.xml | 56852 | 2017-07-27 12:34:58 |
| gpx-20170630_def.xml | 173100 | 2017-07-27 12:34:58 |
| gpx-20170630_lab.xml | 494431 | 2017-07-27 12:34:58 |
| gpx-20170630_pre.xml | 275221 | 2017-07-27 12:34:58 |
| R1.htm | 21768 | 2017-07-27 12:34:58 |
| R10.htm | 19233 | 2017-07-27 12:34:58 |
| R11.htm | 111243 | 2017-07-27 12:34:58 |
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| R17.htm | 68761 | 2017-07-27 12:34:58 |
| R18.htm | 12546 | 2017-07-27 12:34:58 |
| R19.htm | 17818 | 2017-07-27 12:34:58 |
| R2.htm | 71952 | 2017-07-27 12:34:58 |
| R20.htm | 106119 | 2017-07-27 12:34:58 |
| R21.htm | 54658 | 2017-07-27 12:34:58 |
| R22.htm | 65897 | 2017-07-27 12:34:58 |
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| R24.htm | 61108 | 2017-07-27 12:34:58 |
| R25.htm | 11128 | 2017-07-27 12:34:58 |
| R26.htm | 24589 | 2017-07-27 12:34:58 |
| R27.htm | 6796 | 2017-07-27 12:34:58 |
| R28.htm | 31762 | 2017-07-27 12:34:58 |
| R29.htm | 47026 | 2017-07-27 12:34:58 |
| R3.htm | 6777 | 2017-07-27 12:34:58 |
| R30.htm | 41089 | 2017-07-27 12:34:58 |
| R31.htm | 19612 | 2017-07-27 12:34:58 |
| R32.htm | 14240 | 2017-07-27 12:34:58 |
| R33.htm | 13056 | 2017-07-27 12:34:58 |
| R34.htm | 41140 | 2017-07-27 12:34:58 |
| R35.htm | 50360 | 2017-07-27 12:34:58 |
| R36.htm | 51072 | 2017-07-27 12:34:58 |
| R37.htm | 7682 | 2017-07-27 12:34:58 |
| R38.htm | 61785 | 2017-07-27 12:34:58 |
| R39.htm | 40445 | 2017-07-27 12:34:58 |
| R4.htm | 40622 | 2017-07-27 12:34:58 |
| R5.htm | 16457 | 2017-07-27 12:34:58 |
| R6.htm | 77650 | 2017-07-27 12:34:58 |
| R7.htm | 8145 | 2017-07-27 12:34:58 |
| R8.htm | 13002 | 2017-07-27 12:34:58 |
| R9.htm | 10681 | 2017-07-27 12:34:58 |
| report.css | 2767 | 2017-07-27 12:34:58 |
| Show.js | 1410 | 2017-07-27 12:34:58 |