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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 |  |  |  |

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