Net Income (Loss) Per Share (Schedule Of Net Income Per Basic And Diluted Shares) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Net income (loss)	$ 2,041	$ (761)	$ 4,304	$ (1,542)
Weighted Average Shares Outstanding, Basic (in shares)	6,803	6,688	6,790	6,682
Per Share Amount, Basic (in dollars per share)	$ 0.30	$ (0.11)	$ 0.63	$ (0.23)
Weighted Average Shares Outstanding, dilutive effect of common equivalent shares, (in shares)	248	0	153	0
Per Share Amount, dilutive effect of common equivalent shares, (in dollars per share)	$ (0.01)	$ 0.00	$ (0.01)	$ 0.00
Weighted Average Shares Outstanding, Dilutive (in shares)	7,051	6,688	6,943	6,682
Per Share Amount, Dilutive (in dollars per share)	$ 0.29	$ (0.11)	$ 0.62	$ (0.23)