Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-13-308575-index-headers.html | 2013-07-30 07:00:59 | |
| 0001193125-13-308575-index.html | 2013-07-30 07:00:59 | |
| 0001193125-13-308575.txt | 2013-07-30 07:00:59 | |
 0001193125-13-308575-xbrl.zip | 64824 | 2013-07-30 07:00:59 |
| d555725d10q.htm | 370971 | 2013-07-30 07:00:59 |
| d555725dex102.htm | 37072 | 2013-07-30 07:00:59 |
| d555725dex103.htm | 32602 | 2013-07-30 07:00:59 |
| d555725dex104.htm | 46341 | 2013-07-30 07:00:59 |
| d555725dex311.htm | 9438 | 2013-07-30 07:00:59 |
| d555725dex312.htm | 9623 | 2013-07-30 07:00:59 |
| d555725dex321.htm | 4846 | 2013-07-30 07:00:59 |
| FilingSummary.xml | 22325 | 2013-07-30 07:00:59 |
| Financial_Report.xls | 254430 | 2013-07-30 07:00:59 |
 g555725g81x11.jpg | 78329 | 2013-07-30 07:00:59 |
| ghm-20130630.xml | 254223 | 2013-07-30 07:00:59 |
| ghm-20130630.xsd | 33000 | 2013-07-30 07:00:59 |
| ghm-20130630_cal.xml | 65105 | 2013-07-30 07:00:59 |
| ghm-20130630_def.xml | 87700 | 2013-07-30 07:00:59 |
| ghm-20130630_lab.xml | 273202 | 2013-07-30 07:00:59 |
| ghm-20130630_pre.xml | 200475 | 2013-07-30 07:00:59 |
| R1.htm | 26683 | 2013-07-30 07:00:59 |
| R1.xml | 26827 | 2013-07-30 07:00:59 |
| R10.htm | 8643 | 2013-07-30 07:00:59 |
| R10.xml | 8291 | 2013-07-30 07:00:59 |
| R11.htm | 16664 | 2013-07-30 07:00:59 |
| R11.xml | 19248 | 2013-07-30 07:00:59 |
| R12.htm | 33951 | 2013-07-30 07:00:59 |
| R12.xml | 42900 | 2013-07-30 07:00:59 |
| R13.htm | 11533 | 2013-07-30 07:00:59 |
| R13.xml | 11533 | 2013-07-30 07:00:59 |
| R14.htm | 25800 | 2013-07-30 07:00:59 |
| R14.xml | 31488 | 2013-07-30 07:00:59 |
| R15.htm | 13231 | 2013-07-30 07:00:59 |
| R15.xml | 15353 | 2013-07-30 07:00:59 |
| R16.htm | 8395 | 2013-07-30 07:00:59 |
| R16.xml | 8333 | 2013-07-30 07:00:59 |
| R17.htm | 22919 | 2013-07-30 07:00:59 |
| R17.xml | 28003 | 2013-07-30 07:00:59 |
| R18.htm | 8679 | 2013-07-30 07:00:59 |
| R18.xml | 8536 | 2013-07-30 07:00:59 |
| R19.htm | 10075 | 2013-07-30 07:00:59 |
| R19.xml | 9948 | 2013-07-30 07:00:59 |
| R2.htm | 67600 | 2013-07-30 07:00:59 |
| R2.xml | 69835 | 2013-07-30 07:00:59 |
| R20.htm | 27830 | 2013-07-30 07:00:59 |
| R20.xml | 33320 | 2013-07-30 07:00:59 |
| R21.htm | 11230 | 2013-07-30 07:00:59 |
| R21.xml | 11080 | 2013-07-30 07:00:59 |
| R22.htm | 5245 | 2013-07-30 07:00:59 |
| R22.xml | 5181 | 2013-07-30 07:00:59 |
| R23.htm | 5086 | 2013-07-30 07:00:59 |
| R23.xml | 5009 | 2013-07-30 07:00:59 |
| R24.htm | 5478 | 2013-07-30 07:00:59 |
| R24.xml | 5399 | 2013-07-30 07:00:59 |
| R25.htm | 5831 | 2013-07-30 07:00:59 |
| R25.xml | 5762 | 2013-07-30 07:00:59 |
| R26.htm | 6758 | 2013-07-30 07:00:59 |
| R26.xml | 14938 | 2013-07-30 07:00:59 |
| R27.htm | 7820 | 2013-07-30 07:00:59 |
| R27.xml | 7176 | 2013-07-30 07:00:59 |
| R28.htm | 9526 | 2013-07-30 07:00:59 |
| R28.xml | 9025 | 2013-07-30 07:00:59 |
| R29.htm | 5050 | 2013-07-30 07:00:59 |
| R29.xml | 5073 | 2013-07-30 07:00:59 |
| R3.htm | 22492 | 2013-07-30 07:00:59 |
| R3.xml | 23381 | 2013-07-30 07:00:59 |
| R30.htm | 20051 | 2013-07-30 07:00:59 |
| R30.xml | 21324 | 2013-07-30 07:00:59 |
| R31.htm | 24421 | 2013-07-30 07:00:59 |
| R31.xml | 69575 | 2013-07-30 07:00:59 |
| R32.htm | 19983 | 2013-07-30 07:00:59 |
| R32.xml | 21097 | 2013-07-30 07:00:59 |
| R33.htm | 48645 | 2013-07-30 07:00:59 |
| R33.xml | 101625 | 2013-07-30 07:00:59 |
| R34.htm | 36564 | 2013-07-30 07:00:59 |
| R34.xml | 45467 | 2013-07-30 07:00:59 |
| R35.htm | 6540 | 2013-07-30 07:00:59 |
| R35.xml | 8613 | 2013-07-30 07:00:59 |
| R36.htm | 11694 | 2013-07-30 07:00:59 |
| R36.xml | 16360 | 2013-07-30 07:00:59 |
| R37.htm | 5194 | 2013-07-30 07:00:59 |
| R37.xml | 7745 | 2013-07-30 07:00:59 |
| R38.htm | 14157 | 2013-07-30 07:00:59 |
| R38.xml | 16009 | 2013-07-30 07:00:59 |
| R39.htm | 21222 | 2013-07-30 07:00:59 |
| R39.xml | 28016 | 2013-07-30 07:00:59 |
| R4.htm | 6135 | 2013-07-30 07:00:59 |
| R4.xml | 8444 | 2013-07-30 07:00:59 |
| R40.htm | 17876 | 2013-07-30 07:00:59 |
| R40.xml | 25172 | 2013-07-30 07:00:59 |
| R41.htm | 16480 | 2013-07-30 07:00:59 |
| R41.xml | 18698 | 2013-07-30 07:00:59 |
| R42.htm | 27425 | 2013-07-30 07:00:59 |
| R42.xml | 91166 | 2013-07-30 07:00:59 |
| R43.htm | 20025 | 2013-07-30 07:00:59 |
| R43.xml | 59871 | 2013-07-30 07:00:59 |
| R44.htm | 20623 | 2013-07-30 07:00:59 |
| R44.xml | 33845 | 2013-07-30 07:00:59 |
| R5.htm | 145467 | 2013-07-30 07:00:59 |
| R5.xml | 131997 | 2013-07-30 07:00:59 |
| R6.htm | 23308 | 2013-07-30 07:00:59 |
| R6.xml | 26014 | 2013-07-30 07:00:59 |
| R7.htm | 105676 | 2013-07-30 07:00:59 |
| R7.xml | 104352 | 2013-07-30 07:00:59 |
| R8.htm | 11329 | 2013-07-30 07:00:59 |
| R8.xml | 10856 | 2013-07-30 07:00:59 |
| R9.htm | 7990 | 2013-07-30 07:00:59 |
| R9.xml | 8167 | 2013-07-30 07:00:59 |
| report.css | 2740 | 2013-07-30 07:00:59 |
| Show.js | 1410 | 2013-07-30 07:00:59 |