Basic And Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net income	$ (15,128)	$ (19,111)	$ (13,769)
Basic weighted-average shares outstanding	27,429	28,437	28,106
Diluted weighted-average shares outstanding	27,429	28,437	28,106
Net income per share - basic	$ (0.55)	$ (0.67)	$ (0.49)
Net income per share - diluted	$ (0.55)	$ (0.67)	$ (0.49)
Antidilutive securities excluded from computation of earnings per share (in shares)	3,000	2,700	2,300