Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2016	Sep. 30, 2015
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	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	32,214,855	31,721,114
Common stock, shares outstanding	32,214,855	31,721,114