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| 0001477932-22-005884.txt | 2022-08-12 09:15:53 | |
 0001477932-22-005884-xbrl.zip | 12705 | 2022-08-12 09:15:53 |
| FilingSummary.xml | 1719 | 2022-08-12 09:15:53 |
| Financial_Report.xlsx | 5590 | 2022-08-12 09:15:53 |
| grvi-20220810.xsd | 5720 | 2022-08-12 09:15:53 |
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| grvi-20220810_lab.xml | 13164 | 2022-08-12 09:15:53 |
| grvi-20220810_pre.xml | 8246 | 2022-08-12 09:15:53 |
| grvi_8k.htm | 28564 | 2022-08-12 09:15:53 |
| grvi_8k_htm.xml | 3262 | 2022-08-12 09:15:53 |
| grvi_ex991.htm | 6190 | 2022-08-12 09:15:53 |
| grvi_ex992.htm | 9253 | 2022-08-12 09:15:53 |
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 grvi_ex992img8.jpg | 81771 | 2022-08-12 09:15:53 |
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| R1.htm | 35478 | 2022-08-12 09:15:53 |
| report.css | 2767 | 2022-08-12 09:15:53 |
| Show.js | 1085 | 2022-08-12 09:15:53 |