Computation of Net Loss Per Share of Common Stock (Components Of Net Income (Loss) Per Basic And Diluted Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net loss	$ (2,611)	$ (4,291)	$ (6,173)	$ (8,423)
Weighted average shares outstanding – basic	9,356	9,236	9,301	9,227
Net loss per share – basic	$ (0.28)	$ (0.46)	$ (0.66)	$ (0.91)
Warrant	$ (11)	$ 0	$ 0	$ 0
Loss from attributable to common shareholders	$ (2,622)	$ (4,291)	$ (6,173)	$ (8,423)
Denominator effect of dilutive securities	1	0	0	0
Weighted average shares outstanding – diluted	9,357	9,236	9,301	9,227
Net loss per share – diluted	$ (0.28)	$ (0.46)	$ (0.66)	$ (0.91)
Total anti-dilutive
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Denominator effect of dilutive securities	0	0	0	0
Warrant
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Denominator effect of dilutive securities	1	0	0	0