Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000931148-15-000043-index-headers.html | 2015-07-29 16:50:45 | |
| 0000931148-15-000043-index.html | 2015-07-29 16:50:45 | |
| 0000931148-15-000043.txt | 2015-07-29 16:50:45 | |
 0000931148-15-000043-xbrl.zip | 298115 | 2015-07-29 16:50:45 |
| a2015-q210q.htm | 2477538 | 2015-07-29 16:50:45 |
| a2015q210qex311.htm | 10469 | 2015-07-29 16:50:45 |
| a2015q210qex312.htm | 10463 | 2015-07-29 16:50:45 |
| a2015q210qex321.htm | 7452 | 2015-07-29 16:50:45 |
| a2015q210qex322.htm | 7288 | 2015-07-29 16:50:45 |
| a3410271_3xsecondamendment.htm | 154514 | 2015-07-29 16:50:45 |
| a3425163_3xjuly2015usreaff.htm | 69547 | 2015-07-29 16:50:45 |
| a3425885_3xjuly2015luxembo.htm | 40324 | 2015-07-29 16:50:45 |
 filinglogoa09.jpg | 22476 | 2015-07-29 16:50:45 |
| FilingSummary.xml | 40702 | 2015-07-29 16:50:45 |
| Financial_Report.xlsx | 99838 | 2015-07-29 16:50:45 |
| gti-20150630.xml | 4532500 | 2015-07-29 16:50:45 |
| gti-20150630.xsd | 46182 | 2015-07-29 16:50:45 |
| gti-20150630_cal.xml | 87844 | 2015-07-29 16:50:45 |
| gti-20150630_def.xml | 277392 | 2015-07-29 16:50:45 |
| gti-20150630_lab.xml | 616901 | 2015-07-29 16:50:45 |
| gti-20150630_pre.xml | 420613 | 2015-07-29 16:50:45 |
| R1.htm | 22555 | 2015-07-29 16:50:45 |
| R10.htm | 22749 | 2015-07-29 16:50:45 |
| R11.htm | 69175 | 2015-07-29 16:50:45 |
| R12.htm | 54790 | 2015-07-29 16:50:45 |
| R13.htm | 50782 | 2015-07-29 16:50:45 |
| R14.htm | 35806 | 2015-07-29 16:50:45 |
| R15.htm | 16538 | 2015-07-29 16:50:45 |
| R16.htm | 29428 | 2015-07-29 16:50:45 |
| R17.htm | 18143 | 2015-07-29 16:50:45 |
| R18.htm | 29294 | 2015-07-29 16:50:45 |
| R19.htm | 124167 | 2015-07-29 16:50:45 |
| R2.htm | 87021 | 2015-07-29 16:50:45 |
| R20.htm | 787162 | 2015-07-29 16:50:45 |
| R21.htm | 7456 | 2015-07-29 16:50:45 |
| R22.htm | 20016 | 2015-07-29 16:50:45 |
| R23.htm | 10521 | 2015-07-29 16:50:45 |
| R24.htm | 453731 | 2015-07-29 16:50:45 |
| R25.htm | 25223 | 2015-07-29 16:50:45 |
| R26.htm | 19621 | 2015-07-29 16:50:45 |
| R27.htm | 61431 | 2015-07-29 16:50:45 |
| R28.htm | 56979 | 2015-07-29 16:50:45 |
| R29.htm | 42462 | 2015-07-29 16:50:45 |
| R3.htm | 23987 | 2015-07-29 16:50:45 |
| R30.htm | 17810 | 2015-07-29 16:50:45 |
| R31.htm | 15588 | 2015-07-29 16:50:45 |
| R32.htm | 27184 | 2015-07-29 16:50:45 |
| R33.htm | 10038 | 2015-07-29 16:50:45 |
| R34.htm | 28788 | 2015-07-29 16:50:45 |
| R35.htm | 157596 | 2015-07-29 16:50:45 |
| R36.htm | 784104 | 2015-07-29 16:50:45 |
| R37.htm | 8272 | 2015-07-29 16:50:45 |
| R38.htm | 34353 | 2015-07-29 16:50:45 |
| R39.htm | 132432 | 2015-07-29 16:50:45 |
| R4.htm | 69614 | 2015-07-29 16:50:45 |
| R40.htm | 28957 | 2015-07-29 16:50:45 |
| R41.htm | 14333 | 2015-07-29 16:50:45 |
| R42.htm | 24085 | 2015-07-29 16:50:45 |
| R43.htm | 13985 | 2015-07-29 16:50:45 |
| R44.htm | 14476 | 2015-07-29 16:50:45 |
| R45.htm | 24562 | 2015-07-29 16:50:45 |
| R46.htm | 26094 | 2015-07-29 16:50:45 |
| R47.htm | 29403 | 2015-07-29 16:50:45 |
| R48.htm | 10552 | 2015-07-29 16:50:45 |
| R49.htm | 17280 | 2015-07-29 16:50:45 |
| R5.htm | 5367 | 2015-07-29 16:50:45 |
| R50.htm | 66947 | 2015-07-29 16:50:45 |
| R51.htm | 15387 | 2015-07-29 16:50:45 |
| R52.htm | 8924 | 2015-07-29 16:50:45 |
| R53.htm | 11452 | 2015-07-29 16:50:45 |
| R54.htm | 19545 | 2015-07-29 16:50:45 |
| R55.htm | 9605 | 2015-07-29 16:50:45 |
| R56.htm | 13194 | 2015-07-29 16:50:45 |
| R57.htm | 11579 | 2015-07-29 16:50:45 |
| R58.htm | 17133 | 2015-07-29 16:50:45 |
| R59.htm | 17328 | 2015-07-29 16:50:45 |
| R6.htm | 98850 | 2015-07-29 16:50:45 |
| R60.htm | 15859 | 2015-07-29 16:50:45 |
| R61.htm | 20070 | 2015-07-29 16:50:45 |
| R62.htm | 9032 | 2015-07-29 16:50:45 |
| R63.htm | 148588 | 2015-07-29 16:50:45 |
| R64.htm | 107990 | 2015-07-29 16:50:45 |
| R65.htm | 101238 | 2015-07-29 16:50:45 |
| R66.htm | 42793 | 2015-07-29 16:50:45 |
| R67.htm | 17685 | 2015-07-29 16:50:45 |
| R7.htm | 11183 | 2015-07-29 16:50:45 |
| R8.htm | 460476 | 2015-07-29 16:50:45 |
| R9.htm | 28706 | 2015-07-29 16:50:45 |
| report.css | 2767 | 2015-07-29 16:50:45 |
| Show.js | 1410 | 2015-07-29 16:50:45 |