Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001140361-21-028678-index-headers.html | 2021-08-17 16:42:16 | |
| 0001140361-21-028678-index.html | 2021-08-17 16:42:16 | |
| 0001140361-21-028678.txt | 2021-08-17 16:42:16 | |
 0001140361-21-028678-xbrl.zip | 24352 | 2021-08-17 16:42:16 |
| brhc10028076_8k.htm | 38477 | 2021-08-17 16:42:16 |
| brhc10028076_8k_htm.xml | 4052 | 2021-08-17 16:42:16 |
| brhc10028076_ex4-1.htm | 30112 | 2021-08-17 16:42:16 |
| brhc10028076_ex99-1.htm | 29990 | 2021-08-17 16:42:16 |
| FilingSummary.xml | 1745 | 2021-08-17 16:42:16 |
| Financial_Report.xlsx | 5676 | 2021-08-17 16:42:16 |
| gra-20210816.xsd | 3911 | 2021-08-17 16:42:16 |
| gra-20210816_lab.xml | 22544 | 2021-08-17 16:42:16 |
| gra-20210816_pre.xml | 16035 | 2021-08-17 16:42:16 |
| MetaLinks.json | 20040 | 2021-08-17 16:42:16 |
| R1.htm | 38579 | 2021-08-17 16:42:16 |
| report.css | 2767 | 2021-08-17 16:42:16 |
| Show.js | 1085 | 2021-08-17 16:42:16 |