Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000931148-22-000113-index-headers.html | 2022-09-16 16:35:59 | |
| 0000931148-22-000113-index.html | 2022-09-16 16:35:59 | |
| 0000931148-22-000113.txt | 2022-09-16 16:35:59 | |
 0000931148-22-000113-xbrl.zip | 84890 | 2022-09-16 16:35:59 |
| FilingSummary.xml | 1660 | 2022-09-16 16:35:59 |
| Financial_Report.xlsx | 5700 | 2022-09-16 16:35:59 |
| gti-20220916.htm | 34138 | 2022-09-16 16:35:59 |
| gti-20220916.xsd | 1899 | 2022-09-16 16:35:59 |
 gti-20220916_g1.jpg | 84955 | 2022-09-16 16:35:59 |
| gti-20220916_htm.xml | 10827 | 2022-09-16 16:35:59 |
| gti-20220916_lab.xml | 24155 | 2022-09-16 16:35:59 |
| gti-20220916_pre.xml | 12507 | 2022-09-16 16:35:59 |
| MetaLinks.json | 16652 | 2022-09-16 16:35:59 |
| R1.htm | 38110 | 2022-09-16 16:35:59 |
| report.css | 2767 | 2022-09-16 16:35:59 |
| Show.js | 1084 | 2022-09-16 16:35:59 |