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SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2013
SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Schedule of Annual Rates of Depreciation
Annual rates of depreciation are as follows:

   
%
     
Demonstration and rental equipment
 
33
Research and development equipment
 
25 - 33
Manufacturing equipment
 
15 - 33
Office furniture and equipment
 
7 - 33
Leasehold improvements
 
(*)
 
 
*)
At the shorter of the lease period or useful life of the leasehold improvement.
Assumptions Used in Estimation of Fair Value of Stock-based Compensation Awards
 
The fair value for options granted in 2013, 2012 and 2011 is estimated at the date of grant with the following weighted average assumptions:

   
2013
 
2012
 
2011
             
Dividend yield
 
0%
 
0%
 
0%
Expected volatility
 
71%-74%
 
80-100%
 
76-132%
Risk-free interest
 
0.3%-0.6%
 
0.3-0.4%
 
0.3-2.1%
Expected life (in years)
 
2.81
 
1.5-5.5
 
1.5-5.5
Schedule of Changes in the Liability for Product Warranty
The followings are the changes in the liability for product warranty from January 1, 2011 to December 31, 2013:

       
Balance at January 1, 2011
    229  
         
Provision for warranties issued during the year
    316  
Reduction for payments and costs to satisfy claims
    (297 )
         
Balance at December 31, 2011
    248  
         
Provision for warranties issued during the year
    130  
Reduction for payments and costs to satisfy claims
    (123 )
         
Balance at December 31, 2012
    255  
         
Provision for warranties issued during the year
    288  
Reduction for payments and costs to satisfy claims
    (401 )
         
Balance at December 31, 2013
    142