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BUSINESS COMBINATION - Additional Information (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 22, 2021
USD ($)
shares
Dec. 12, 2021
$ / shares
shares
Jul. 07, 2021
Day
$ / shares
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
shares
Business Acquisition [Line Items]          
Shares price | $ / shares     $ 15.00    
Percentage number of shares ceases to beneficially owned   (20.00%)      
Prepaid directors and officers insurance policy in connection with closing of business combination | $ $ 1,244        
Payment of paycheck protection program loan | $       $ 113  
Interest and payments to redeeming company shareholders | $ 171,437        
Net proceeds from equity infusion from the Business Combination | $ 141,471     $ 141,471  
Payment of transaction costs | $ $ 20,640        
Dr. Rothberg          
Business Acquisition [Line Items]          
Common shares, shares outstanding 15,055,288        
Percentage of common stock voting power 84.80%        
HealthCor          
Business Acquisition [Line Items]          
Net proceeds from equity infusion from the Business Combination | $ $ 207,448        
Class A Common Stock          
Business Acquisition [Line Items]          
Business combination transaction threshold trading days | Day     20    
Business combination transaction threshold consecutive trading days. | Day     30    
Number of votes per share entitled to class of common stock | $ / shares   $ 1      
Common shares, shares outstanding 54,977,061     55,277,061 1,576,137
Common shares, shares issued       55,277,061 1,576,137
Class A Common Stock | Immediately Prior To Effective Time          
Business Acquisition [Line Items]          
Common shares, shares issued 5,025,000        
Class A Common Stock | Sponsor          
Business Acquisition [Line Items]          
Common shares, shares issued 614,000        
Class A Common Stock | HealthCor          
Business Acquisition [Line Items]          
Common stock subject to redemption 17,142,244        
Class A Common Stock | Subscription Agreements          
Business Acquisition [Line Items]          
Shares price | $ / shares   $ 10.00      
Aggregate number of shares issued in transaction   12,610,000      
Class B Common Stock          
Business Acquisition [Line Items]          
Number of votes per share entitled to class of common stock | $ / shares   $ 20      
Shares held by sponsor , irrevocably forfeited 150,000        
Common shares, shares outstanding       15,055,288 0
Common shares, shares issued       15,055,288 0
Conversion of stock, shares issued 5,025,000        
Class B Common Stock | Immediately Prior To Effective Time          
Business Acquisition [Line Items]          
Common shares, shares issued 5,175,000        
Class B Ordinary Shares          
Business Acquisition [Line Items]          
Shares held by sponsor , irrevocably forfeited 150,000        
Conversion of stock, shares issued 5,175,000        
Class A Ordinary Shares          
Business Acquisition [Line Items]          
Common shares, shares issued 3,557,756        
Legacy Hyperfine          
Business Acquisition [Line Items]          
Stock split, conversion ratio     0.3275    
Legacy Hyperfine | Class A Common Stock          
Business Acquisition [Line Items]          
Common shares, shares issued 29,711,224        
Legacy Hyperfine | Series A-1 preferred stock          
Business Acquisition [Line Items]          
Common shares, shares issued 3,459,081        
Liminal          
Business Acquisition [Line Items]          
Stock split, conversion ratio     0.1796    
Business combination, shares issued as earn out consideration     10,000,000    
PIPE Investors          
Business Acquisition [Line Items]          
Net proceeds from equity infusion from the Business Combination | $ $ 126,100        
PIPE Investors | Class A Common Stock          
Business Acquisition [Line Items]          
Common shares, shares issued 12,610,000