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| 0001558370-19-008860-index.html | 2019-10-09 09:59:57 | |
| 0001558370-19-008860.txt | 2019-10-09 09:59:57 | |
 0001558370-19-008860-xbrl.zip | 154438 | 2019-10-09 09:59:57 |
| FilingSummary.xml | 25903 | 2019-10-09 09:59:57 |
| Financial_Report.xlsx | 67424 | 2019-10-09 09:59:57 |
| grif-20190831.xml | 1995256 | 2019-10-09 09:59:57 |
| grif-20190831.xsd | 51630 | 2019-10-09 09:59:57 |
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| grif-20190831ex31221dd6d.htm | 11557 | 2019-10-09 09:59:57 |
| grif-20190831ex3210f8951.htm | 7267 | 2019-10-09 09:59:57 |
| grif-20190831ex3226a4cec.htm | 7629 | 2019-10-09 09:59:57 |
| grif-20190831x10q.htm | 1904932 | 2019-10-09 09:59:57 |
| grif-20190831_cal.xml | 71522 | 2019-10-09 09:59:57 |
| grif-20190831_def.xml | 188460 | 2019-10-09 09:59:57 |
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| R9.htm | 29589 | 2019-10-09 09:59:57 |
| report.css | 2767 | 2019-10-09 09:59:57 |
| Show.js | 1085 | 2019-10-09 09:59:57 |