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Supplementary Balance Sheet Information (Details) - Schedule of accounts receivable, other - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Supplementary Balance Sheet Information (Details) - Schedule of accounts receivable, other [Line Items]    
Accounts receivable other $ 269 $ 577
Government institutions [Member]    
Supplementary Balance Sheet Information (Details) - Schedule of accounts receivable, other [Line Items]    
Accounts receivable other 29 213
Employees [Member]    
Supplementary Balance Sheet Information (Details) - Schedule of accounts receivable, other [Line Items]    
Accounts receivable other 26 47
Interest Receivable [Member]    
Supplementary Balance Sheet Information (Details) - Schedule of accounts receivable, other [Line Items]    
Accounts receivable other 23 70
Sundry [Member]    
Supplementary Balance Sheet Information (Details) - Schedule of accounts receivable, other [Line Items]    
Accounts receivable other $ 191 $ 247