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PROPERTY AND EQUIPMENT, NET (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Cost $ 38,278 $ 44,765  
Accumulated depreciation 26,285 36,630  
Deprecated cost 11,993 8,135  
Depreciation 3,704 2,752 $ 2,203
Lab equipment [Member]      
Property, Plant and Equipment [Line Items]      
Cost 17,624 17,548  
Accumulated depreciation 13,511 14,548  
Computers and peripheral equipment [Member]      
Property, Plant and Equipment [Line Items]      
Cost 13,090 22,374  
Accumulated depreciation 10,501 20,145  
Office furniture and equipment [Member]      
Property, Plant and Equipment [Line Items]      
Cost 1,454 1,356  
Accumulated depreciation 575 659  
Leasehold improvements [Member]      
Property, Plant and Equipment [Line Items]      
Cost 3,134 2,557  
Accumulated depreciation 1,224 1,162  
Lease equipment [Member]      
Property, Plant and Equipment [Line Items]      
Cost 2,976 930  
Accumulated depreciation $ 474 $ 116