v3.26.1
STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 29, 2025
Feb. 12, 2025
Nov. 22, 2023
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Dec. 31, 2025
Mar. 18, 2026
Dec. 31, 2024
Loan Agreement                          
Class of Stock [Line Items]                          
Warrants expiration period       7 years       7 years   7 years      
Hyperfine Plan                          
Class of Stock [Line Items]                          
Increased number of shares available for grant                     3,888,869    
Common stock shares outstanding percentage                     4.00%    
Weighted-average grant date fair value of options granted       $ 0.8       $ 0.8          
Common stock remains available for issuance       6,409,893       6,409,893   6,409,893      
Common Stock | Registered Direct Offering                          
Class of Stock [Line Items]                          
Gross proceeds from issuance of common stock   $ 6,000,000                      
Restricted Stock Unit | Registered Direct Offering                          
Class of Stock [Line Items]                          
Warrants   4,511,278                      
Restricted Stock Unit | Common Stock | Registered Direct Offering                          
Class of Stock [Line Items]                          
Sale of stock price   $ 1.33                      
Warrants, exercise price   $ 1.33                      
Warrants expiration period   5 years                      
Maximum | At-the-market Offering Program                          
Class of Stock [Line Items]                          
Proceeds from sale of securities     $ 150,000                    
Class A Common Stock | At-the-market Offering Program                          
Class of Stock [Line Items]                          
Gross proceeds from issuance of common stock               $ 11,375,000 $ 835,000        
Class A Common Stock | Common Stock                          
Class of Stock [Line Items]                          
Shares issued       90,987,381 83,464,909 63,525,713 62,784,562 90,987,381 63,525,713 90,987,381 82,166,458   58,076,261
Class A Common Stock | Common Stock | At-the-market Offering Program                          
Class of Stock [Line Items]                          
Issuance of common stock (in shares) 3,464,325     7,131,767 678,012 681,793 126,398 7,809,779   7,809,779      
Gross proceeds from issuance of common stock $ 4,350,000     $ 10,843,000       $ 11,667,000   $ 11,667,000      
Net proceeds after deducting commissions and other offering expenses 4,165,000     $ 10,572,000       $ 11,375,000   $ 11,375,000      
Class A Common Stock | Common Stock | Registered Direct Offering                          
Class of Stock [Line Items]                          
Issuance of common stock (in shares)   4,511,278                      
Class A Common Stock | Warrants | Loan Agreement                          
Class of Stock [Line Items]                          
Warrants, exercise price       $ 1.2       $ 1.2   $ 1.2      
Warrants expiration period       7 years       7 years   7 years      
Class A Common Stock | Additional Warrants | Loan Agreement                          
Class of Stock [Line Items]                          
Warrants, exercise price                       $ 1.2  
Warrants expiration period       7 years       7 years   7 years   7 years  
Warrants                       520,835  
Class A Common Stock | Maximum | At-the-market Offering Program                          
Class of Stock [Line Items]                          
Proceeds from sale of securities $ 50,000   $ 50,000