STOCKHOLDERS' EQUITY - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Weighted Average Exercise Price
Outstanding	$ 1.46
Hyperfine Plan
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Outstanding	10,719,564	7,522,136
Granted	5,323,048	8,685,663
Exercised	(210,234)	(25,870)
Forfeited	(1,560,791)	(5,462,365)
Outstanding	14,271,587	10,719,564	7,522,136
Options exercisable	5,604,577
Vested or expected to vest	14,033,151
Weighted Average Exercise Price
Outstanding	$ 1.34	$ 3.21
Granted	1.65	2.43
Exercised	0.83	0.26
Forfeited	1.41	3.03
Outstanding		$ 1.34	$ 3.21
Options exercisable	1.65
Vested or expected to vest	$ 1.46
Weighted Average Remaining Contractual Term
Outstanding		8 years 9 months	8 years 9 months 14 days
Options exercisable	7 years 3 months 18 days
Vested or expected to vest	8 years 3 months 18 days
Aggregate Intrinsic Value
Outstanding		$ 157	$ 30,052
Options exercisable	$ 886
Vested or expected to vest	$ 1,714