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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2018
Accounting Policies [Abstract]  
Estimated Useful Lives of Property and Equipment

Depreciation is calculated based on the straight-line method over the estimated useful lives of the assets, at the following annual rates:

 

    %  
       
Research equipment and software     25-33  
Furniture and office equipment     7  
Leasehold improvements     20