CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2016	Jun. 30, 2016
CONSOLIDATED BALANCE SHEETS
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized shares	100,000,000	100,000,000
Common stock, issued shares	37,443,721	37,150,165
Common stock, outstanding shares	36,838,519	36,604,202
Treasury stock, shares	605,202	545,963