Net Income (Loss) Per Share (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net Income (Loss) Per Share [Abstract]
Earnings per share, Potentially dilutive shares	551,000	336,000	585,000	316,000