Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001477932-22-003371-index-headers.html | 2022-05-16 09:25:56 | |
| 0001477932-22-003371-index.html | 2022-05-16 09:25:56 | |
| 0001477932-22-003371.txt | 2022-05-16 09:25:56 | |
 0001477932-22-003371-xbrl.zip | 132952 | 2022-05-16 09:25:56 |
| FilingSummary.xml | 33844 | 2022-05-16 09:25:56 |
| Financial_Report.xlsx | 75921 | 2022-05-16 09:25:56 |
| grvi-20220331.xsd | 59493 | 2022-05-16 09:25:56 |
| grvi-20220331_cal.xml | 57788 | 2022-05-16 09:25:56 |
| grvi-20220331_def.xml | 167546 | 2022-05-16 09:25:56 |
| grvi-20220331_lab.xml | 323361 | 2022-05-16 09:25:56 |
| grvi-20220331_pre.xml | 286382 | 2022-05-16 09:25:56 |
| grvi_10q.htm | 1142439 | 2022-05-16 09:25:56 |
| grvi_10q_htm.xml | 787080 | 2022-05-16 09:25:56 |
| grvi_ex311.htm | 11839 | 2022-05-16 09:25:56 |
| grvi_ex312.htm | 9267 | 2022-05-16 09:25:56 |
| grvi_ex321.htm | 3841 | 2022-05-16 09:25:56 |
| grvi_ex322.htm | 3945 | 2022-05-16 09:25:56 |
| MetaLinks.json | 492575 | 2022-05-16 09:25:56 |
| R1.htm | 54093 | 2022-05-16 09:25:56 |
| R10.htm | 21678 | 2022-05-16 09:25:56 |
| R11.htm | 38122 | 2022-05-16 09:25:56 |
| R12.htm | 14057 | 2022-05-16 09:25:56 |
| R13.htm | 22048 | 2022-05-16 09:25:56 |
| R14.htm | 12955 | 2022-05-16 09:25:56 |
| R15.htm | 22780 | 2022-05-16 09:25:56 |
| R16.htm | 8190 | 2022-05-16 09:25:56 |
| R17.htm | 16308 | 2022-05-16 09:25:56 |
| R18.htm | 29833 | 2022-05-16 09:25:56 |
| R19.htm | 9409 | 2022-05-16 09:25:56 |
| R2.htm | 107691 | 2022-05-16 09:25:56 |
| R20.htm | 6817 | 2022-05-16 09:25:56 |
| R21.htm | 10211 | 2022-05-16 09:25:56 |
| R22.htm | 76338 | 2022-05-16 09:25:56 |
| R23.htm | 8578 | 2022-05-16 09:25:56 |
| R24.htm | 18969 | 2022-05-16 09:25:56 |
| R25.htm | 36728 | 2022-05-16 09:25:56 |
| R26.htm | 12275 | 2022-05-16 09:25:56 |
| R27.htm | 21589 | 2022-05-16 09:25:56 |
| R28.htm | 12094 | 2022-05-16 09:25:56 |
| R29.htm | 18629 | 2022-05-16 09:25:56 |
| R3.htm | 22408 | 2022-05-16 09:25:56 |
| R30.htm | 26820 | 2022-05-16 09:25:56 |
| R31.htm | 9400 | 2022-05-16 09:25:56 |
| R32.htm | 9407 | 2022-05-16 09:25:56 |
| R33.htm | 54013 | 2022-05-16 09:25:56 |
| R34.htm | 97643 | 2022-05-16 09:25:56 |
| R35.htm | 8756 | 2022-05-16 09:25:56 |
| R36.htm | 4698 | 2022-05-16 09:25:56 |
| R37.htm | 23651 | 2022-05-16 09:25:56 |
| R38.htm | 14252 | 2022-05-16 09:25:56 |
| R39.htm | 11313 | 2022-05-16 09:25:56 |
| R4.htm | 91350 | 2022-05-16 09:25:56 |
| R40.htm | 16923 | 2022-05-16 09:25:56 |
| R41.htm | 17454 | 2022-05-16 09:25:56 |
| R42.htm | 12926 | 2022-05-16 09:25:56 |
| R43.htm | 12757 | 2022-05-16 09:25:56 |
| R44.htm | 17127 | 2022-05-16 09:25:56 |
| R45.htm | 6036 | 2022-05-16 09:25:56 |
| R46.htm | 11881 | 2022-05-16 09:25:56 |
| R47.htm | 7401 | 2022-05-16 09:25:56 |
| R48.htm | 17012 | 2022-05-16 09:25:56 |
| R49.htm | 14352 | 2022-05-16 09:25:56 |
| R5.htm | 82096 | 2022-05-16 09:25:56 |
| R50.htm | 21720 | 2022-05-16 09:25:56 |
| R51.htm | 14837 | 2022-05-16 09:25:56 |
| R52.htm | 14821 | 2022-05-16 09:25:56 |
| R53.htm | 93891 | 2022-05-16 09:25:56 |
| R54.htm | 30702 | 2022-05-16 09:25:56 |
| R55.htm | 11366 | 2022-05-16 09:25:56 |
| R56.htm | 11436 | 2022-05-16 09:25:56 |
| R57.htm | 10952 | 2022-05-16 09:25:56 |
| R58.htm | 28680 | 2022-05-16 09:25:56 |
| R6.htm | 102842 | 2022-05-16 09:25:56 |
| R7.htm | 12324 | 2022-05-16 09:25:56 |
| R8.htm | 87862 | 2022-05-16 09:25:56 |
| R9.htm | 10124 | 2022-05-16 09:25:56 |
| report.css | 2767 | 2022-05-16 09:25:56 |
| Show.js | 1085 | 2022-05-16 09:25:56 |