SIGNIFICANT ACCOUNTING POLICIES (Details - Revenue) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue from External Customer [Line Items]
Revenue	$ 341,767	$ 315,319
Service fee revenue
Revenue from External Customer [Line Items]
Revenue	303,276	279,577
Commercial insurance
Revenue from External Customer [Line Items]
Revenue	188,465	182,096
Medicare
Revenue from External Customer [Line Items]
Revenue	70,999	63,589
Medicaid
Revenue from External Customer [Line Items]
Revenue	9,087	8,451
Workers' compensation/personal injury
Revenue from External Customer [Line Items]
Revenue	12,449	10,399
Other patient revenue
Revenue from External Customer [Line Items]
Revenue	7,123	4,775
Management fee revenue
Revenue from External Customer [Line Items]
Revenue	5,508	5,219
Software revenue
Revenue from External Customer [Line Items]
Revenue	3,399	2,426
AI revenue
Revenue from External Customer [Line Items]
Revenue	599	0
Other
Revenue from External Customer [Line Items]
Revenue	5,647	2,622
Revenue under capitation arrangements
Revenue from External Customer [Line Items]
Revenue	$ 38,491	$ 35,742