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SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION (Other Assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Other assets:    
Institutions $ 771 $ 604
State of Israel (see note 6a)   26
Restricted deposit 436 820
Prepaid expenses 841 314
Sundry 48 68
Other assets $ 2,096 $ 1,832