Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income (loss) (Numerator):
Net Income (Loss) Attributable to Parent	$ (4,264)	$ 655	$ (8,713)	$ (8,805)
Shares (Denominator):
Weighted average common shares outstanding	42,806	42,232	42,564	42,040
Shares used in basic computation	42,806	42,232	42,564	42,040
Common shares issuable upon exercise of stock options (treasury stock method)	0	755	0	0
Shares used in diluted computation	42,806	42,987	42,564	42,040
Net income (loss) per share:
Basic	$ (0.10)	$ 0.02	$ (0.20)	$ (0.21)
Diluted	$ (0.10)	$ 0.02	$ (0.20)	$ (0.21)