SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details - Earnings Per Share) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Net income (loss) attributable to RadNet, Inc. common stockholders	$ 10,650	$ 24,727	$ (14,840)
BASIC NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS
Weighted average number of common shares outstanding during the period (in shares)	56,293,336	52,496,679	50,891,791
Basic net (loss) income per share attributable to RadNet, inc. common stockholders (in dollars per share)	$ 0.19	$ 0.47	$ (0.29)
DILUTED NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS
Weighted average number of common shares outstanding during the period (in shares)	56,293,336	52,496,679	50,891,791
Add nonvested restricted stock subject only to service vesting (in shares)	172,139	259,539	0
Add additional shares issuable upon exercise of stock options, warrants and holdback shares (in shares)	855,395	664,815	0
Weighted average number of common shares used in calculating diluted net income per share (in shares)	57,320,870	53,421,033	50,891,791
Changes in fair value associated with contingently issuable shares	$ (724)	$ 0	$ 0
Net income (loss) attributable to RadNet, Inc's common stockholders for diluted share calculation	$ 9,926	$ 24,727	$ (14,840)
Diluted net income (loss) per share attributable to RadNet, Inc. common stockholders (in dollars per share)	$ 0.17	$ 0.46	$ (0.29)
Nonvested restricted stock subject to service vesting
Stock options and non-vested restricted awards excluded from the computation of diluted per share amounts as their effect would be antidilutive:
Weighted average shares for which the exercise price exceeds average market price of common stock (in shares)	0	0	329,159
Shares issuable upon the exercise of stock options
Stock options and non-vested restricted awards excluded from the computation of diluted per share amounts as their effect would be antidilutive:
Weighted average shares for which the exercise price exceeds average market price of common stock (in shares)	152,723	47,792	554,444