Quarterly report pursuant to Section 13 or 15(d)

Lines of Credit and Other Borrowings - Additional Information (Detail)

v2.4.1.9
Lines of Credit and Other Borrowings - Additional Information (Detail) (USD $)
0 Months Ended 3 Months Ended 12 Months Ended
Jul. 28, 2014
Jun. 03, 2014
May 31, 2014
May 05, 2014
Apr. 10, 2014
Mar. 04, 2014
Mar. 31, 2015
Agreement
Mar. 31, 2014
Dec. 31, 2014
Line Of Credit Facility [Line Items]                  
Number revolving credit facility agreements             2biol_NumberRevolvingCreditFacilityAgreements    
Repayments under Credit Agreements $ 2,900,000us-gaap_RepaymentsOfLinesOfCredit             $ 9,325,000us-gaap_RepaymentsOfLinesOfCredit  
Credit agreements amendment fee         10,000biol_AmendmentsAndAdministrativeFees 10,000biol_AmendmentsAndAdministrativeFees      
Lines of credit maximum borrowing capacity         4,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity 5,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity      
Line of credit facility, expiration date   Aug. 01, 2014 Aug. 01, 2014 Jun. 01, 2014         May 01, 2014
Revolving lines of credit fee paid   15,000biol_LineOfCreditNonCompliancePayments 10,000biol_LineOfCreditNonCompliancePayments 10,000biol_LineOfCreditNonCompliancePayments          
Increase decrease in interest rate of lines of credit facility   0.50%us-gaap_DebtInstrumentInterestRateIncreaseDecrease              
Prime floor, daily prime plus LIBOR             2.50%biol_PrimeFloor 2.50%biol_PrimeFloor  
Unused capacity commitment fee percentage             0.25%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage    
Interest expense incurred for lines of credit and loan and security agreement               229,000us-gaap_InterestExpenseBorrowings  
Accrued interest payable                 0us-gaap_InterestPayableCurrentAndNoncurrent
Amortization of discounts on lines of credit               120,000us-gaap_AmortizationOfDebtDiscountPremium  
Amortization of debt issuance costs               57,000us-gaap_AmortizationOfFinancingCosts  
Restricted cash equivalent             200,000us-gaap_RestrictedCashAndCashEquivalents   0us-gaap_RestrictedCashAndCashEquivalents
Aggregate agreements amendment fee.               10,000biol_AggregateAmendmentsAndAdministrativeFees  
Financed insurance premium             0biol_FinancedInsurancePremiumPayable 123,000biol_FinancedInsurancePremiumPayable  
Number of monthly insurance premium installments payable             Nine    
Financial insurance premiums interest rate               2.85%biol_FinancedInsurancePremiumFinanceCharge  
Interest expense incurred for financed insurance premiums               $ 1,000us-gaap_FinancingInterestExpense  
Domestic Revolver Credit Facility | Prime Rate                  
Line Of Credit Facility [Line Items]                  
Interest on principal balance rate plus             2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LineOfCreditFacilityAxis
= biol_DomesticRevolverCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_PrimeRateMember
   
Ex-Im Revolver | Prime Rate | Minimum                  
Line Of Credit Facility [Line Items]                  
Interest on principal balance rate plus             2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LineOfCreditFacilityAxis
= biol_ExImRevolverMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_PrimeRateMember