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Related Party Loan (Details Narrative)	Sep. 30, 2016 USD ($)
Related Party Transactions [Abstract]
Outstanding balance of payable on demand	$ 10,000

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- References

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+ Details

Name:	bivi_OutstandingBalanceOfPayableOnDemand
Namespace Prefix:	bivi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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Name:	us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration