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GEOGRAPHIC AND SEGMENT INFORMATION (Details Narrative) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Geographic And Segment Information Details Narrative |  |  |
Percentage of International sales of sales | 15.70%BVX_PercentageOfInternationalSalesOfSales | 17.70%BVX_PercentageOfInternationalSalesOfSales | 21.00%BVX_PercentageOfInternationalSalesOfSales

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- Details
Name: | BVX_GeographicAndSegmentInformationDetailsNarrativeAbstract
Namespace Prefix: | BVX_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition No authoritative reference available. + References No definition available. + Details
Name: | BVX_PercentageOfInternationalSalesOfSales
Namespace Prefix: | BVX_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration