4. Net Income (Loss) Per Share (Details 1)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net Income Loss Per Share Details 1
Anti-dilutive options	6,801,408	10,959,270	10,959,270	6,801,408