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BUSINESS COMBINATIONS AND RELATED ACTIVITY (Details Narrative) - USD ($) $ in Thousands			3 Months Ended	9 Months Ended
	Sep. 01, 2021	Jan. 01, 2021	Sep. 30, 2021	Sep. 30, 2021	Aug. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Investment in joint ventures			$ 44,228	$ 44,228		$ 34,528
Contributions		$ 300
Sale of economic interests in majority owned subsidiary, net of taxes			11,602	11,602
Tarzana Medical Center, LLC
Business Acquisition [Line Items]
Payments to acquire intangible assets				5,200
Additional Paid-In Capital
Business Acquisition [Line Items]
Sale of economic interests in majority owned subsidiary, net of taxes			$ 4,198	$ 4,198
Simi Valley Imaging Group, LLC
Business Acquisition [Line Items]
Ownership interest		60.00%
West Valley Imaging Group LLC | Subsidiaries
Business Acquisition [Line Items]
Ownership interest, sale portion	24.90%
Proceeds from sale of economic interest in majority owned subsidiary, net of taxes	$ 13,100
Ownership percent	50.10%				75.00%
Simi Valley Imaging Group, LLC
Business Acquisition [Line Items]
Investment in joint ventures		$ 400
Simi Adventist
Business Acquisition [Line Items]
Investment in joint ventures		$ 100
Simi Adventist | Simi Valley Imaging Group, LLC
Business Acquisition [Line Items]
Ownership interest		40.00%

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