Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2013	Sep. 30, 2012
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	24,249,912	23,701,050
Common stock, shares outstanding	23,459,012	22,910,150
Treasury stock, at cost	790,900	790,900