BIOLASE, Inc. Quarterly report pursuant to Section 13 or 15(d)

Inventory - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Schedule Of Inventory [Line Items]
Provision for excess and obsolete inventory	$ 3.0	$ 2.8

Amount of valuation reserve for inventory.