Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-007530-index-headers.html | 2022-05-05 06:19:50 | |
| 0000950170-22-007530-index.html | 2022-05-05 06:19:50 | |
| 0000950170-22-007530.txt | 2022-05-05 06:19:50 | |
 0000950170-22-007530-xbrl.zip | 48455 | 2022-05-05 06:19:50 |
| bv-20220505.htm | 73578 | 2022-05-05 06:19:50 |
| bv-20220505.xsd | 2426 | 2022-05-05 06:19:50 |
| bv-20220505_htm.xml | 4506 | 2022-05-05 06:19:50 |
| bv-20220505_lab.xml | 13518 | 2022-05-05 06:19:50 |
| bv-20220505_pre.xml | 10511 | 2022-05-05 06:19:50 |
| bv-ex99_1.htm | 1172599 | 2022-05-05 06:19:50 |
| bv-ex99_2.htm | 20677 | 2022-05-05 06:19:50 |
| FilingSummary.xml | 1684 | 2022-05-05 06:19:50 |
| Financial_Report.xlsx | 5650 | 2022-05-05 06:19:50 |
 img77028497_0.jpg | 6740 | 2022-05-05 06:19:50 |
 img77028497_1.jpg | 252695 | 2022-05-05 06:19:50 |
 img77028497_2.jpg | 253730 | 2022-05-05 06:19:50 |
 img77952018_0.jpg | 6740 | 2022-05-05 06:19:50 |
| MetaLinks.json | 16498 | 2022-05-05 06:19:50 |
| R1.htm | 38675 | 2022-05-05 06:19:50 |
| report.css | 2767 | 2022-05-05 06:19:50 |
| Show.js | 1085 | 2022-05-05 06:19:50 |