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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parentheticals) (USD $) | 12 Months Ended
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May 31, 2014
Amount due on agreement to purchase restricted stock | $ 100,000

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- Definition Amount due on agreement to purchase restricted stock. + References No definition available. + Details
Name: | bmra_AmountDueOnAgreementToPurchaseRestrictedStock
Namespace Prefix: | bmra_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration