Annual report pursuant to Section 13 and 15(d)

Summary of Net Revenue by Geographic Location (Detail)

v2.4.1.9
Summary of Net Revenue by Geographic Location (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]      
Net revenue $ 47,656us-gaap_SalesRevenueNet $ 56,430us-gaap_SalesRevenueNet $ 57,356us-gaap_SalesRevenueNet
UNITED STATES      
Segment Reporting Information [Line Items]      
Net revenue 29,848us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US 		35,653us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US 		40,524us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US
International      
Segment Reporting Information [Line Items]      
Net revenue $ 17,808us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= biol_InternationalMember 		$ 20,777us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= biol_InternationalMember 		$ 16,832us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= biol_InternationalMember