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Property and Equipment (Tables)
 12 Months Ended
Dec. 31, 2018
Property and Equipment [Abstract]  
Property and Equipment
Property and equipment are as follows:

  
2018
  
2017
 
       
Gamma knife
 
$
-
  
$
5,337,000
 
Leasehold improvements
  
-
   
2,138,000
 
Less: Depreciation and amortization
  
-
   
(3,748,000
)
         
  
$
-
  
$
3,727,000