Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-000702-index-headers.html | 2022-02-03 06:18:56 | |
| 0000950170-22-000702-index.html | 2022-02-03 06:18:56 | |
| 0000950170-22-000702.txt | 2022-02-03 06:18:56 | |
 0000950170-22-000702-xbrl.zip | 36855 | 2022-02-03 06:18:56 |
| bv-20220203.htm | 61933 | 2022-02-03 06:18:56 |
| bv-20220203.xsd | 2418 | 2022-02-03 06:18:56 |
| bv-20220203_htm.xml | 4504 | 2022-02-03 06:18:56 |
| bv-20220203_lab.xml | 13426 | 2022-02-03 06:18:56 |
| bv-20220203_pre.xml | 10419 | 2022-02-03 06:18:56 |
| bv-ex99_1.htm | 796364 | 2022-02-03 06:18:56 |
| FilingSummary.xml | 1654 | 2022-02-03 06:18:56 |
| Financial_Report.xlsx | 5650 | 2022-02-03 06:18:56 |
 img77028497_0.jpg | 6740 | 2022-02-03 06:18:56 |
 img77028497_1.jpg | 74864 | 2022-02-03 06:18:56 |
| MetaLinks.json | 16449 | 2022-02-03 06:18:56 |
| R1.htm | 38554 | 2022-02-03 06:18:56 |
| report.css | 2767 | 2022-02-03 06:18:56 |
| Show.js | 1085 | 2022-02-03 06:18:56 |