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5. ACQUISITIONS (Details Narrative) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Dec. 31, 2015
Goodwill $ 240,520 $ 240,520 $ 239,408
Diagnostic Imaging Group [Member]      
Additional payment made for acquisition   1,600  
Amounts owed for previous acquisition 3,400 3,400  
Diagnostic Imaging Group [Member] | Restatement Adjustment [Member]      
Increase to fixed assets 1,200    
Unfavorable lease contract liability 1,000 1,000  
Diagnostic Imaging Group [Member] | Restatement Adjustment [Member] | October 1, 2015 to December 31, 2015 [Member]      
Increase in depreciation expense 123    
Diagnostic Imaging Group [Member] | Restatement Adjustment [Member] | January 1, 2016 to March 31, 2016 [Member]      
Increase in depreciation expense 123    
Advanced Radiological Imaging [Member]      
Cash paid for acquisition   5,000  
Fixed asset allocation 3,600 3,600  
Prepaid expense allocation 47 47  
Covenant not to compete allocation 100 100  
Goodwill $ 1,300 $ 1,300