SUMMARY OF ACCOUNTING POLICIES (Details - Key Financial Data on Joint Ventures) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Balance Sheet Data:
Current assets	$ 32,318		$ 27,427
Noncurrent assets	67,307		61,037
Current liabilities	(10,677)		(9,217)
Noncurrent liabilities	(22,572)		(18,872)
Total net assets	66,376		60,375
Book value of RadNet joint venture interests	30,894		28,001
Cost in excess of book value of acquired joint venture interests and other	6,476		6,469
Total value of Radnet joint venture interests	37,370		34,470
Total book value of other joint venture partner interests	35,482		$ 32,374
Net revenue	43,849	$ 55,624
Net income	$ 6,001	$ 8,723