Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-21-000849-index-headers.html | 2021-08-05 06:32:08 | |
| 0000950170-21-000849-index.html | 2021-08-05 06:32:08 | |
| 0000950170-21-000849.txt | 2021-08-05 06:32:08 | |
 0000950170-21-000849-xbrl.zip | 42784 | 2021-08-05 06:32:08 |
| bv-20210805.htm | 56586 | 2021-08-05 06:32:08 |
| bv-20210805.xsd | 2372 | 2021-08-05 06:32:08 |
| bv-20210805ex99_1.htm | 1051606 | 2021-08-05 06:32:08 |
| bv-20210805_htm.xml | 4510 | 2021-08-05 06:32:08 |
| bv-20210805_lab.xml | 13563 | 2021-08-05 06:32:08 |
| bv-20210805_pre.xml | 10557 | 2021-08-05 06:32:08 |
| FilingSummary.xml | 1654 | 2021-08-05 06:32:08 |
| Financial_Report.xlsx | 5651 | 2021-08-05 06:32:08 |
 img221177755_0.jpg | 6740 | 2021-08-05 06:32:08 |
 img221177755_1.jpg | 65665 | 2021-08-05 06:32:08 |
 img221177755_2.jpg | 64347 | 2021-08-05 06:32:08 |
| MetaLinks.json | 17107 | 2021-08-05 06:32:08 |
| R1.htm | 38592 | 2021-08-05 06:32:08 |
| report.css | 2767 | 2021-08-05 06:32:08 |
| Show.js | 1085 | 2021-08-05 06:32:08 |