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CONVERTIBLE PREFERRED STOCK AND WARRANTS (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013
Proceeds allocated | $ 7,000,000
Expenses allocated | 1,060,520
Series A Preferred Stock [Member] |
Proceeds allocated | 2,616,250
Expenses allocated | 396,369
Investor Warrants [Member] |
Proceeds allocated | 4,383,750
Expenses allocated | $ 664,151

X
- Definition Cost of offering allocation. + References No definition available. + Details
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Namespace Prefix: | bvx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Proceeds of offering allocation. + References No definition available. + Details
Name: | bvx_ProceedsOfOfferingAllocation
Namespace Prefix: | bvx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration