Significant Accounting Policies (Numerators And Denominators In The Calculation Of Basic And Diluted Net Loss Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net loss	$ (1,136)	$ (1,150)	$ (1,059)	$ (1,359)	$ (2,286)	$ (2,418)
Denominator:
Shares used in computing net loss per share, basic and diluted	24,779		17,162		24,630	17,162
Net loss per share, basic and diluted	$ (0.05)		$ (0.06)		$ (0.09)	$ (0.14)
Employee Stock Option [Member]
Denominator:
Common stock shares excluded from net loss per share, diluted	2,294		2,960		2,177	2,962
Stock Warrants [Member]
Denominator:
Common stock shares excluded from net loss per share, diluted	1,427		9,127		1,427	9,127