Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-23-017423-index-headers.html | 2023-05-04 06:16:35 | |
| 0000950170-23-017423-index.html | 2023-05-04 06:16:35 | |
| 0000950170-23-017423.txt | 2023-05-04 06:16:35 | |
 0000950170-23-017423-xbrl.zip | 44514 | 2023-05-04 06:16:35 |
| bv-20230504.htm | 68177 | 2023-05-04 06:16:35 |
| bv-20230504.xsd | 2400 | 2023-05-04 06:16:35 |
| bv-20230504_htm.xml | 4504 | 2023-05-04 06:16:35 |
| bv-20230504_lab.xml | 13428 | 2023-05-04 06:16:35 |
| bv-20230504_pre.xml | 10473 | 2023-05-04 06:16:35 |
| bv-ex99_1.htm | 1214944 | 2023-05-04 06:16:35 |
| FilingSummary.xml | 1651 | 2023-05-04 06:16:35 |
| Financial_Report.xlsx | 5681 | 2023-05-04 06:16:35 |
 img77028497_0.jpg | 6740 | 2023-05-04 06:16:35 |
 img77028497_1.jpg | 49629 | 2023-05-04 06:16:35 |
 img77028497_2.jpg | 51465 | 2023-05-04 06:16:35 |
| MetaLinks.json | 16950 | 2023-05-04 06:16:35 |
| R1.htm | 38075 | 2023-05-04 06:16:35 |
| report.css | 2767 | 2023-05-04 06:16:35 |
| Show.js | 1085 | 2023-05-04 06:16:35 |