Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-23-001913-index-headers.html | 2023-02-07 06:16:36 | |
| 0000950170-23-001913-index.html | 2023-02-07 06:16:36 | |
| 0000950170-23-001913.txt | 2023-02-07 06:16:36 | |
 0000950170-23-001913-xbrl.zip | 39249 | 2023-02-07 06:16:36 |
| bv-20230207.htm | 68395 | 2023-02-07 06:16:36 |
| bv-20230207.xsd | 2400 | 2023-02-07 06:16:36 |
| bv-20230207_htm.xml | 4504 | 2023-02-07 06:16:36 |
| bv-20230207_lab.xml | 13428 | 2023-02-07 06:16:36 |
| bv-20230207_pre.xml | 10473 | 2023-02-07 06:16:36 |
| bv-ex99_1.htm | 908590 | 2023-02-07 06:16:36 |
| FilingSummary.xml | 1651 | 2023-02-07 06:16:36 |
| Financial_Report.xlsx | 5682 | 2023-02-07 06:16:36 |
 img77028497_0.jpg | 6740 | 2023-02-07 06:16:36 |
 img77028497_1.jpg | 50621 | 2023-02-07 06:16:36 |
| MetaLinks.json | 16950 | 2023-02-07 06:16:36 |
| R1.htm | 38077 | 2023-02-07 06:16:36 |
| report.css | 2767 | 2023-02-07 06:16:36 |
| Show.js | 1085 | 2023-02-07 06:16:36 |