4. FACILITY ACQUISITIONS (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
New Jersey Imaging Powers, Inc. [Member]
Divestiture, cash received	$ 35,500
Gain on sale of investment	5,400
Baltimore County Radiology, LLC [Member]
Divestiture, cash received	5,000
Gain on sale of investment	3,700
Philip L. Chatham, M.D., Inc. [Member]
Acquisition, cash paid	300
Fixed assets acquired	26
Goodwill acquired	790
Intangible assets acquired	100
Other assets acquired	300
Total consideration transferred	916
Murray Hill Radiology [Member]
Acquisition, cash paid	5,800
Fixed assets acquired	1,600
Goodwill acquired	4,100
Other assets acquired	95
Total consideration transferred	5,800
Hanford Imaging, L.P. [Member]
Acquisition, cash paid	1,000
Fixed assets acquired	215
Goodwill acquired	785
Total consideration transferred	1,000
Healthcare Radiology [Member]
Acquisition, cash paid	425
Fixed assets acquired	135
Leasehold improvements acquired	290
California Radiology [Member]
Acquisition, cash paid	4,200
Fixed assets acquired	217
Goodwill acquired	2,100
Intangible assets acquired	100
Other assets acquired	34
Leasehold improvements acquired	1,700
Total consideration transferred	4,200
New York Radiology Partners [Member]
Acquisition, cash paid	29,800
Fixed assets acquired	6,900
Accounts receivable acquired	4,900
Goodwill acquired	9,900
Intangible assets acquired	1,200
Other assets acquired	34,500
Leasehold improvements acquired	11,600
Notes payable assumed	2,300
Current liabilities assumed	891
Note payable issued	$ 1,500
Hematology Oncology Consultants [Member]
Acquisition, cash paid		$ 553
Fixed assets acquired		15
Inventory acquired		164
Goodwill acquired		235
Intangible assets acquired		100
Other assets acquired		39
Imaging Centers of Pasadena [Member]
Acquisition, cash paid		1,800
Fixed assets acquired		1,700
Intangible assets acquired		105
Healthcare Partners [Member]
Acquisition, cash paid		300
Note payable issued		1,800
Total consideration transferred		2,100
Moreno Valley Imaging [Member]
Acquisition, cash paid		700
Fixed assets acquired		285
Goodwill acquired		362
Intangible assets acquired		50
Other assets acquired		3
Liberty Pacific Imaging Long Beach [Member]
Acquisition, cash paid		1,900
Fixed assets acquired		577
Goodwill acquired		1,300
Intangible assets acquired		100
Medical Imaging of Manhattan [Member]
Acquisition, cash paid		2,400
Fixed assets acquired		672
Goodwill acquired		1,400
Intangible assets acquired		150
Other assets acquired		139
Sidney Friedman [Member]
Acquisition, cash paid		1,400
Accounts receivable acquired		470
Inventory acquired		600
Goodwill acquired		231
Intangible assets acquired		100
Leslie A. Saint-Louis [Member]
Acquisition, cash paid		360
Goodwill acquired		310
Intangible assets acquired		$ 50