Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-23-218500-index-headers.html | 2023-08-23 08:30:58 | |
| 0001193125-23-218500-index.html | 2023-08-23 08:30:58 | |
| 0001193125-23-218500.txt | 2023-08-23 08:30:58 | |
 0001193125-23-218500-xbrl.zip | 8758 | 2023-08-23 08:30:58 |
| d536483d8k.htm | 38712 | 2023-08-23 08:30:58 |
| d536483d8k_htm.xml | 3258 | 2023-08-23 08:30:58 |
| FilingSummary.xml | 1696 | 2023-08-23 08:30:58 |
| Financial_Report.xlsx | 5686 | 2023-08-23 08:30:58 |
| ghm-20230822.xsd | 2857 | 2023-08-23 08:30:58 |
| ghm-20230822_lab.xml | 17236 | 2023-08-23 08:30:58 |
| ghm-20230822_pre.xml | 10818 | 2023-08-23 08:30:58 |
| MetaLinks.json | 18306 | 2023-08-23 08:30:58 |
| R1.htm | 38086 | 2023-08-23 08:30:58 |
| report.css | 2766 | 2023-08-23 08:30:58 |
| Show.js | 1084 | 2023-08-23 08:30:58 |