Net Income Per Share (Details Textual)	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income per share (Textual)
Weighted average shares outstanding, diluted	227,986	56,480	152,887	53,159
Options to purchase common stock were antidilutive	0	5,499	0	5,499