SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details - Key Financial Data on Joint Ventures) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance Sheet Data:
Current assets	$ 367,184	$ 324,264
Current liabilities	(466,723)	(374,784)
Total value of RadNet joint venture interests	57,893	42,229	$ 34,528
Net revenue	1,430,061	1,315,077	1,071,840
Net income	33,608	44,319	(1,749)
Joint Venture Interest
Balance Sheet Data:
Total net assets	106,458	75,489
Book value of RadNet joint venture interests	49,564	34,930
Cost in excess of book value of acquired joint venture interests accounted for as equity method goodwill	8,329	7,299
Total value of RadNet joint venture interests	57,893	42,229
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Balance Sheet Data:
Current assets	39,304	37,186
Noncurrent assets	134,694	73,592
Current liabilities	(29,588)	(12,919)
Noncurrent liabilities	(37,952)	(22,370)
Net revenue	145,256	129,023	101,921
Net income	$ 21,169	$ 21,893	$ 16,850