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Selected Statements of Income Data (Details) - Schedule of financial income (expenses), net - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Schedule of financial income (expenses), net [Abstract]      
Bank charges and interest from loans offset by interest from short term deposits $ (614) $ (374) $ (986)
Interest income from marketable securities, net of amortization of premium on marketable securities 100 212 284
Gain (loss) arising from foreign currency translation and other (403) (1,007) 855
Financial income (expenses), net $ (917) $ (1,169) $ 153