3. SIGNIFICANT ACCOUNTING POLICIES (Details - Revenue) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Commercial Insurance	$ 126,397	$ 99,885
Medicare	45,820	37,036
Medicaid	7,023	5,470
Workers Compensation/Personal Injury	9,514	7,400
Other	12,088	15,239
Service fee revenue, net of contractual allowances and discounts	200,842	165,030
Provision for bad debts	(10,304)	(7,475)
Net service fee revenue	190,538	157,555
Revenue under capitation arrangements	25,850	23,712
Total net revenue	$ 216,388	$ 181,267