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Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2014
Asset Retirement Obligations [Abstract]  
Asset Retirement Obligations Roll Forward
When the NYU agreement was finalized, the Company estimated the cost to remove the gamma knife at the end of the agreement to be approximately $620,000. The estimated present value of this liability is $431,000.

  
2014
  
2013
 
     
Asset retirement obligations, beginning of year
 
$
-
  
$
525,000
 
Liabilities reclassified to capital lease obligations
  
-
   
(525,000
)
Asset retirement obligations for new gamma knife
  
431,000
   
-
 
         
Asset retirement of obligations, end of the year
 
$
431,000
  
$
-