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PROPERTY AND EQUIPMENT, NET (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]      
Cost $ 7,501 $ 7,119  
Accumulated depreciation 5,843 5,408  
Depreciated cost 1,658 1,711  
Depreciation 461 715 $ 989
Computers, software and related equipment [Member]      
Property, Plant and Equipment [Line Items]      
Cost 1,506 1,431  
Accumulated depreciation 1,351 1,264  
Laboratory equipment and office furniture [Member]      
Property, Plant and Equipment [Line Items]      
Cost 3,674 3,367  
Accumulated depreciation 3,114 3,001  
Leasehold improvements [Member]      
Property, Plant and Equipment [Line Items]      
Cost 2,321 2,321  
Accumulated depreciation 1,378 1,143  
Obsolete property and equipment and certain nonfunctional Lab equipment [Member]      
Property, Plant and Equipment [Line Items]      
Cost 26 220  
Accumulated depreciation $ 26 $ 188