Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-21-023967-index-headers.html | 2021-09-28 15:27:01 | |
| 0001493152-21-023967-index.html | 2021-09-28 15:27:01 | |
| 0001493152-21-023967.txt | 2021-09-28 15:27:01 | |
 0001493152-21-023967-xbrl.zip | 21938 | 2021-09-28 15:27:01 |
| FilingSummary.xml | 9070 | 2021-09-28 15:27:01 |
| Financial_Report.xlsx | 19089 | 2021-09-28 15:27:01 |
| form10-12ga.htm | 374084 | 2021-09-28 15:27:01 |
| gvsi-20201231.xml | 46429 | 2021-09-28 15:27:01 |
| gvsi-20201231.xsd | 9312 | 2021-09-28 15:27:01 |
| gvsi-20201231_cal.xml | 21571 | 2021-09-28 15:27:01 |
| gvsi-20201231_def.xml | 17414 | 2021-09-28 15:27:01 |
| gvsi-20201231_lab.xml | 79439 | 2021-09-28 15:27:01 |
| gvsi-20201231_pre.xml | 58737 | 2021-09-28 15:27:01 |
| R1.htm | 18413 | 2021-09-28 15:27:01 |
| R10.htm | 7161 | 2021-09-28 15:27:01 |
| R11.htm | 5437 | 2021-09-28 15:27:01 |
| R12.htm | 5163 | 2021-09-28 15:27:01 |
| R13.htm | 12626 | 2021-09-28 15:27:01 |
| R14.htm | 13154 | 2021-09-28 15:27:01 |
| R2.htm | 69508 | 2021-09-28 15:27:01 |
| R3.htm | 19604 | 2021-09-28 15:27:01 |
| R4.htm | 65016 | 2021-09-28 15:27:01 |
| R5.htm | 48841 | 2021-09-28 15:27:01 |
| R6.htm | 22000 | 2021-09-28 15:27:01 |
| R7.htm | 6878 | 2021-09-28 15:27:01 |
| R8.htm | 5728 | 2021-09-28 15:27:01 |
| R9.htm | 9473 | 2021-09-28 15:27:01 |
| report.css | 2767 | 2021-09-28 15:27:01 |
| Show.js | 1085 | 2021-09-28 15:27:01 |