Quarterly report pursuant to Section 13 or 15(d)

Summary of Warrant Activity (Detail)

v2.4.1.9
Summary of Warrant Activity (Detail) (Warrants, USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Warrants
   
Shares    
Beginning Balance 888,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
 
Exercised 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Ending Balance 888,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
 
Warrants exercisable, March 31, 2015 753,000biol_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableNumber
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
 
Weighted Average Exercise Price    
Beginning Balance $ 6.04biol_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageExercisePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
 
Ending Balance $ 6.04biol_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageExercisePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
 
Warrants exercisable at March 31, 2015 $ 6.40biol_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember