Earnings (Loss) Per Share (Calculation Of Basic And Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings (Loss) Per Share [Abstract]
Net income (loss)	$ 871	$ (2,748)	$ 992	$ (7,007)
Basic weighted-average common shares outstanding in period	22,450	22,346	22,418	22,164
Dilutive effect of stock options	142		126
Diluted weighted-average common shares outstanding in period	22,592	22,346	22,544	22,164
Basic earnings (loss) per common share	$ 0.04	$ (0.12)	$ 0.04	$ (0.32)
Diluted earnings (loss) per common share	$ 0.04	$ (0.12)	$ 0.04	$ (0.32)
Shares excluded from the diluted weighted average number of shares outstanding		449		449