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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings (Loss) Per Share [Abstract]
Net income (loss)	$ 1,992	$ (536)	$ 2,984	$ (7,543)
Basic weighted-average common shares outstanding in period	22,469	22,353	22,435	22,228
Dilutive effect of stock options	114		123
Diluted weighted-average common shares outstanding in period	22,583	22,353	22,558	22,228
Basic earnings (loss) per common share	$ 0.09	$ (0.02)	$ 0.13	$ (0.34)
Diluted earnings (loss) per common share	$ 0.09	$ (0.02)	$ 0.13	$ (0.34)
Shares excluded from the diluted weighted average number of shares outstanding		449		449