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INVENTORIES (Details Narrative) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Notes to Financial Statements
Excess and obsolete inventory	$ 843

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- Definition

No authoritative reference available.

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+ Details

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Namespace Prefix:	BVX_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Details

Name:	BVX_NotesToFinancialStatementsAbstract
Namespace Prefix:	BVX_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration