Quarterly report pursuant to Section 13 or 15(d)

Summary of Property, Plant, and Equipment (Detail)

v2.4.1.9
Summary of Property, Plant, and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Property Plant And Equipment [Line Items]    
Property, plant, and equipment gross, excluding land $ 7,386biol_PropertyPlantAndEquipmentGrossExcludingLand $ 6,788biol_PropertyPlantAndEquipmentGrossExcludingLand
Accumulated depreciation and amortization (5,796)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (5,669)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property, plant, and equipment net, excluding land 1,590biol_PropertyPlantAndEquipmentNetExcludingLand 1,119biol_PropertyPlantAndEquipmentNetExcludingLand
Land 157us-gaap_Land 176us-gaap_Land
Property, plant, and equipment, net 1,747us-gaap_PropertyPlantAndEquipmentNet 1,295us-gaap_PropertyPlantAndEquipmentNet
Building    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 202us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingMember
226us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingMember
Leasehold Improvements    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 1,200us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
1,197us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
Equipment and Computers    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 5,035us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
4,948us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
Furniture and Fixtures    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 413us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember
413us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember
Construction in Progress    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross $ 536us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ConstructionInProgressMember
$ 4us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ConstructionInProgressMember