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v3.21.2

Liquidity (Details Narrative) | Sep. 30, 2021 USD ($)
--- | ---
Liquidity |
[custom:WorkingCapital-0] | $ 19,300,000

X
- References No definition available. + Details
Name: | bivi_DisclosureLiquidityAbstract
Namespace Prefix: | bivi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bivi_WorkingCapital
Namespace Prefix: | bivi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant