Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

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Commitments and Contingencies - Additional Information (Detail)
1 Months Ended 12 Months Ended
Dec. 10, 2021
ft²
Feb. 28, 2021
USD ($)
shares
Feb. 04, 2020
ft²
Jan. 22, 2020
ft²
Jan. 25, 2019
USD ($)
shares
Mar. 31, 2019
USD ($)
Jan. 31, 2019
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Commitment And Contingencies [Line Items]                      
Lease term     66 months 5 years              
Operating lease, options to renew term               1 year      
Lessee, Operating Lease, Existence of Option to Extend [true false]                 true    
Area of corporate headquarters and manufacturing facility | ft² 15,000   12,000 11,000              
Lease expiration date Jun. 30, 2025   Jul. 01, 2020 Jul. 01, 2020       Dec. 31, 2025      
Operating lease, right-of-use asset               $ 1,717,000 $ 1,976,000    
Operating lease, liability               $ 1,854,000 2,079,000    
Operating lease not yet commenced description               the only lease that had not commenced was for the additional facility lease in Corona, California      
Payments for rent               $ 900,000 700,000 $ 800,000  
Purchase commitments pending               18,700,000      
Litigation settlement share issued | shares   500,000                  
Contingent gain (loss) on patent litigation settlement               (315,000)  
Accrued liability   $ 600,000           8,276,000 6,667,000    
Settlement Agreement                      
Commitment And Contingencies [Line Items]                      
Accrued liability               800,000 1,000,000.0    
Employee Arrangements and Other Compensation                      
Commitment And Contingencies [Line Items]                      
Change in control, if occurs, may require severance benefits payable               2,300,000 2,000,000.0    
Accrued for performance bonuses               400,000 $ 800,000    
Patent Litigation                      
Commitment And Contingencies [Line Items]                      
Contingent gain (loss) on patent litigation settlement           $ 200,000   $ 300,000      
Patent Litigation | Settlement Agreement                      
Commitment And Contingencies [Line Items]                      
Settlement agreement date         January 25, 2019            
Number of days litigation settlement to be paid in cash         5 days            
Litigation settlement in cash         $ 500,000            
Number of days litigation settlement shares to be issued         30 days            
Litigation settlement share issued | shares         500,000            
Number of days litigation settlement to be paid in value of stock consideration         30 days            
Settlement agreement, terms               The Company agreed (i) to pay to CAO, within five days of the Effective Date, $500,000 in cash, (ii) to issue to CAO, within 30 days of the Effective Date, 500,000 restricted shares of BIOLASE common stock (the “Stock Consideration”), and (iii) to pay to CAO, within 30 days of December 31, 2021, an amount in cash equal to the difference (if positive) between $1,000,000 and the value of the Stock Consideration as of December 31, 2021.      
Litigation settlement amount in cash equal to difference between value of stock consideration         $ 1,000,000            
Contingent gain (loss) on patent litigation settlement                     $ (1,500,000)
Payment for litigation settlement in cash             $ 500,000        
Manufacturing Facility                      
Commitment And Contingencies [Line Items]                      
Lease expiration date               Jun. 30, 2025      
Minimum                      
Commitment And Contingencies [Line Items]                      
Lease term               1 year      
Maximum                      
Commitment And Contingencies [Line Items]                      
Lease term               5 years