Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 06, 2019
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Trading Symbol BIOL  
Entity Registrant Name BIOLASE, INC  
Entity Central Index Key 0000811240  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   30,947,423
Entity Current Reporting Status Yes  
Entity File Number 001-36385  
Entity Tax Identification Number 87-0442441  
Entity Address, Address Line One 4 Cromwell  
Entity Address, City or Town Irvine  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 92618  
City Area Code 949  
Local Phone Number 361-1200  
Entity Incorporation, State or Country Code DE  
Entity Interactive Data Current Yes  
Title of 12(b) Security Common stock at par value $0.001 per share  
Security Exchange Name NASDAQ  
Document Quarterly Report true  
Document Transition Report false