Net Income Per Share (Details Textual) (Stock Options [Member])	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Stock Options [Member]
Net Income Loss Per Share (Textual) [Abstract]
Outstanding stock options and warrants	2,500	884,499	119,000	904,499