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GEOGRAPHIC AND PRODUCT LINE INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Sales by Domestic and International	$ 6,128BVX_SalesByDomesticAndInternational	$ 6,482BVX_SalesByDomesticAndInternational
Percent Change	(5.50%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	(5.50%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
Domestic [Member]
Sales by Domestic and International	5,225BVX_SalesByDomesticAndInternational / us-gaap_StatementBusinessSegmentsAxis = BVX_DomesticMember	5,381BVX_SalesByDomesticAndInternational / us-gaap_StatementBusinessSegmentsAxis = BVX_DomesticMember
Percent Change	(2.90%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate / us-gaap_StatementBusinessSegmentsAxis = BVX_DomesticMember	(2.90%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate / us-gaap_StatementBusinessSegmentsAxis = BVX_DomesticMember
International [Member]
Sales by Domestic and International	$ 903BVX_SalesByDomesticAndInternational / us-gaap_StatementBusinessSegmentsAxis = BVX_InternationalMember	$ 1,101BVX_SalesByDomesticAndInternational / us-gaap_StatementBusinessSegmentsAxis = BVX_InternationalMember
Percent Change	(18.00%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate / us-gaap_StatementBusinessSegmentsAxis = BVX_InternationalMember	(18.00%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate / us-gaap_StatementBusinessSegmentsAxis = BVX_InternationalMember

X

- Definition

No authoritative reference available.

+ References

No definition available.

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- Definition

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 6.I)

-URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319

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