Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2016	Jun. 30, 2015
Consolidated Balance Sheets [Abstract]
Common stock, shares authorized	200,000,000	200,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares issued	55,271,954	46,679,565
Common stock, shares outstanding	55,271,954	46,679,565
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Treasury shares, shares outstanding	20,483,932	18,057,228