TRADE ACCOUNTS RECEIVABLE (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Trade Accounts Receivable Details
Trade accounts receivable	$ 2,125	$ 2,029
Less: allowance for doubtful accounts	(133)	(39)
Trade accounts receivable, net	$ 1,992us-gaap_ReceivablesHeldForSaleAmount	$ 1,990us-gaap_ReceivablesHeldForSaleAmount

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

The face amount of loans that will be sold to other entities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The face amount of all receivables that will be sold to other entities, including trade and loan receivables.

+ References

+ Details

Name:	us-gaap_ReceivablesHeldForSaleAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The face amount of accounts receivable that will be sold to other entities.

+ References

+ Details

Name:	us-gaap_TradeReceivablesHeldForSaleAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant