Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.24.1
Subsequent Events - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Mar. 14, 2024
Mar. 04, 2024
Feb. 15, 2024
Jan. 31, 2024
Nov. 14, 2023
Jul. 31, 2024
Apr. 30, 2024
Jan. 31, 2024
Oct. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Sep. 18, 2023
Sep. 13, 2023
Dec. 31, 2020
Jul. 23, 2020
Subsequent Event [Line Items]                                
Common stock, par value                   $ 0.001 $ 0.001          
Total stockholders' equity                   $ (247,000) $ 4,889,000 $ 25,208,000     $ 10,028,000  
Market value of listed securities         $ 35,000,000                      
Net income from continuing operations         500,000                      
Exercise of common stock warrants                   114,000 1,000 15,063,000        
Gross proceeds                   9,553,000 $ 5,602,000 $ 14,420,000        
July 2020 Warrants                                
Subsequent Event [Line Items]                                
Exercise price of warrants per share                               $ 1,000
Series J Convertible Preferred Stock [Member]                                
Subsequent Event [Line Items]                                
Dividend rate                 5.00%              
Exercise price of warrants per share                         $ 30 $ 30    
BIOLASE Common Stock [Member]                                
Subsequent Event [Line Items]                                
Total stockholders' equity                   $ 3,000            
Sale of stock, net, shares                   503,000 7,000 6,000        
Minimum [Member]                                
Subsequent Event [Line Items]                                
Total stockholders' equity         $ 2,500,000                      
Subsequent Event [Member]                                
Subsequent Event [Line Items]                                
Common stock, par value     $ 0.001                          
Bid Price Per Share   $ 1                            
Sale of stock, net, shares     7,795,000                          
Sale of Units, Price Per Share     $ 0.44                          
Gross proceeds     $ 7,000,000                          
Subsequent Event [Member] | Series J Convertible Preferred Stock [Member]                                
Subsequent Event [Line Items]                                
Dividend rate           5.00% 5.00% 5.00%                
Preferred Stock stated value       $ 100       $ 100                
Dividend paid In share       1,215                        
Subsequent Event [Member] | Minimum [Member]                                
Subsequent Event [Line Items]                                
Bid Price Per Share   $ 1                            
Subsequent Event [Member] | Class A Warrant [Member]                                
Subsequent Event [Line Items]                                
Exercise of common stock warrants $ 12,300,000                              
Subsequent Event [Member] | Class A Warrant [Member] | BIOLASE Common Stock [Member]                                
Subsequent Event [Line Items]                                
Exercise price of warrants per share     $ 0.66                          
Subsequent Event [Member] | Class B Warrant [Member] | BIOLASE Common Stock [Member]                                
Subsequent Event [Line Items]                                
Exercise price of warrants per share     $ 0.748                          
Subsequent Event [Member] | Pre Funded Warrants [Member]                                
Subsequent Event [Line Items]                                
Number of Warrants Issued     8,205,000                          
Pre-funded warrants exercised 8,205,000                              
Sale of Units, Price Per Share     $ 0.439                          
Subsequent Event [Member] | Pre Funded Warrants [Member] | BIOLASE Common Stock [Member]                                
Subsequent Event [Line Items]                                
Exercise price of warrants per share     $ 0.001