Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2018	Jun. 30, 2017
Consolidated Balance Sheets
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.0005	$ 0.0005
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	23,324,316	18,180,027
Common stock, shares outstanding	23,315,915	18,171,626
Treasury stock, at cost, shares	8,401	8,401