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CONVERTIBLE PREFERRED STOCK AND WARRANTS (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014
Proceeds allocated | $ 7,000,000 us-gaap_ProceedsFromIssuanceOfPreferredStockPreferenceStockAndWarrants
Expenses allocated | 1,060,520 us-gaap_ConvertiblePreferredDividendsNetOfTax
Series A Preferred Stock [Member] |
Proceeds allocated | 2,616,250 us-gaap_ProceedsFromIssuanceOfPreferredStockPreferenceStockAndWarrants / us-gaap_StatementEquityComponentsAxis = us-gaap_SeriesAPreferredStockMember
Expenses allocated | 396,369 us-gaap_ConvertiblePreferredDividendsNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_SeriesAPreferredStockMember
Investor Warrants [Member] |
Proceeds allocated | 4,383,750 us-gaap_ProceedsFromIssuanceOfPreferredStockPreferenceStockAndWarrants / us-gaap_StatementEquityComponentsAxis = BVX_InvestorWarrantsMember
Expenses allocated | $ 664,151 us-gaap_ConvertiblePreferredDividendsNetOfTax / us-gaap_StatementEquityComponentsAxis = BVX_InvestorWarrantsMember

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- Definition The after-tax amount of any dividends on convertible preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1505-109256 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholder, which takes precedence over common stockholders in the event of liquidation and from issuance of rights to purchase common shares at a predetermined price. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_SeriesAPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |