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| bv-20220630.htm | 3299460 | 2022-08-04 06:19:13 |
| bv-20220630.xsd | 47644 | 2022-08-04 06:19:13 |
| bv-20220630_cal.xml | 52532 | 2022-08-04 06:19:13 |
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| bv-20220630_htm.xml | 2015545 | 2022-08-04 06:19:13 |
| bv-20220630_lab.xml | 443459 | 2022-08-04 06:19:13 |
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| bv-ex32_2.htm | 10761 | 2022-08-04 06:19:13 |
| FilingSummary.xml | 37645 | 2022-08-04 06:19:13 |
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