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Geographic Information (Detail)	Feb. 28, 2013
Threshold For Geographic Concentration Disclosure Percentage	10.00%

X

- Definition

Threshold percentage which the entity uses for geographic concentration.

+ References

No definition available.

+ Details

Name:	bmra_ThresholdForGeographicConcentrationDisclosurePercentage
Namespace Prefix:	bmra_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant