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Research And Development Expenses, Net
12 Months Ended
Dec. 31, 2020
Research and Development Expense [Abstract]  
Research And Development Expenses, Net RESEARCH AND DEVELOPMENT, NET
 Year ended December 31,
 202020192018
Total expenses$428,198 $368,652 $317,690 
Less - grants and participations(68,453)(36,895)(30,338)
 $359,745 $331,757 $287,352