CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Current assets:
Accounts receivable, allowances	$ 630	$ 678
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized (in shares)	5,000	5,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	500,000	500,000
Common stock, issued (in shares)	68,571	67,517
Common stock, outstanding (in shares)	68,105	67,391