Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000931148-12-000048-index-headers.html | 2012-07-26 16:54:46 | |
| 0000931148-12-000048-index.html | 2012-07-26 16:54:46 | |
| 0000931148-12-000048.txt | 2012-07-26 16:54:46 | |
 0000931148-12-000048-xbrl.zip | 139978 | 2012-07-26 16:54:46 |
| exhibit-311.htm | 10349 | 2012-07-26 16:54:46 |
| exhibit-312.htm | 10336 | 2012-07-26 16:54:46 |
| exhibit-321.htm | 8112 | 2012-07-26 16:54:46 |
| exhibit-322.htm | 8088 | 2012-07-26 16:54:46 |
| FilingSummary.xml | 28070 | 2012-07-26 16:54:46 |
| Financial_Report.xls | 996294 | 2012-07-26 16:54:46 |
 g172012img001.jpg | 12947 | 2012-07-26 16:54:46 |
| gti-20120630.xml | 1166091 | 2012-07-26 16:54:46 |
| gti-20120630.xsd | 38053 | 2012-07-26 16:54:46 |
| gti-20120630_cal.xml | 70903 | 2012-07-26 16:54:46 |
| gti-20120630_def.xml | 138978 | 2012-07-26 16:54:46 |
| gti-20120630_lab.xml | 463519 | 2012-07-26 16:54:46 |
| gti-20120630_pre.xml | 278359 | 2012-07-26 16:54:46 |
| gti-2012630x10q.htm | 1072011 | 2012-07-26 16:54:46 |
| R1.htm | 26728 | 2012-07-26 16:54:46 |
| R10.htm | 26019 | 2012-07-26 16:54:46 |
| R11.htm | 60332 | 2012-07-26 16:54:46 |
| R12.htm | 6622 | 2012-07-26 16:54:46 |
| R13.htm | 59641 | 2012-07-26 16:54:46 |
| R14.htm | 50832 | 2012-07-26 16:54:46 |
| R15.htm | 23100 | 2012-07-26 16:54:46 |
| R16.htm | 20641 | 2012-07-26 16:54:46 |
| R17.htm | 32848 | 2012-07-26 16:54:46 |
| R18.htm | 8682 | 2012-07-26 16:54:46 |
| R19.htm | 14113 | 2012-07-26 16:54:46 |
| R2.htm | 138560 | 2012-07-26 16:54:46 |
| R20.htm | 30511 | 2012-07-26 16:54:46 |
| R21.htm | 168973 | 2012-07-26 16:54:46 |
| R22.htm | 8811 | 2012-07-26 16:54:46 |
| R23.htm | 29589 | 2012-07-26 16:54:46 |
| R24.htm | 19819 | 2012-07-26 16:54:46 |
| R25.htm | 54774 | 2012-07-26 16:54:46 |
| R26.htm | 56176 | 2012-07-26 16:54:46 |
| R27.htm | 49560 | 2012-07-26 16:54:46 |
| R28.htm | 18140 | 2012-07-26 16:54:46 |
| R29.htm | 18754 | 2012-07-26 16:54:46 |
| R3.htm | 31774 | 2012-07-26 16:54:46 |
| R30.htm | 30442 | 2012-07-26 16:54:46 |
| R31.htm | 10489 | 2012-07-26 16:54:46 |
| R32.htm | 23215 | 2012-07-26 16:54:46 |
| R33.htm | 159671 | 2012-07-26 16:54:46 |
| R34.htm | 31481 | 2012-07-26 16:54:46 |
| R35.htm | 15353 | 2012-07-26 16:54:46 |
| R36.htm | 33956 | 2012-07-26 16:54:46 |
| R37.htm | 31065 | 2012-07-26 16:54:46 |
| R38.htm | 23066 | 2012-07-26 16:54:46 |
| R39.htm | 19240 | 2012-07-26 16:54:46 |
| R4.htm | 97931 | 2012-07-26 16:54:46 |
| R40.htm | 25991 | 2012-07-26 16:54:46 |
| R41.htm | 4988 | 2012-07-26 16:54:46 |
| R42.htm | 32904 | 2012-07-26 16:54:46 |
| R43.htm | 7432 | 2012-07-26 16:54:46 |
| R44.htm | 12259 | 2012-07-26 16:54:46 |
| R45.htm | 19961 | 2012-07-26 16:54:46 |
| R46.htm | 37723 | 2012-07-26 16:54:46 |
| R47.htm | 11353 | 2012-07-26 16:54:46 |
| R48.htm | 23305 | 2012-07-26 16:54:46 |
| R49.htm | 27566 | 2012-07-26 16:54:46 |
| R5.htm | 5303 | 2012-07-26 16:54:46 |
| R50.htm | 9943 | 2012-07-26 16:54:46 |
| R51.htm | 12674 | 2012-07-26 16:54:46 |
| R52.htm | 22510 | 2012-07-26 16:54:46 |
| R53.htm | 14317 | 2012-07-26 16:54:46 |
| R54.htm | 15357 | 2012-07-26 16:54:46 |
| R55.htm | 13659 | 2012-07-26 16:54:46 |
| R56.htm | 17212 | 2012-07-26 16:54:46 |
| R57.htm | 12736 | 2012-07-26 16:54:46 |
| R6.htm | 147216 | 2012-07-26 16:54:46 |
| R7.htm | 12572 | 2012-07-26 16:54:46 |
| R8.htm | 14543 | 2012-07-26 16:54:46 |
| R9.htm | 33522 | 2012-07-26 16:54:46 |
| report.css | 2721 | 2012-07-26 16:54:46 |
| Show.js | 6423 | 2012-07-26 16:54:46 |