Stock Option Plan (Details) - Stock Options [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Shares Subject to Options Outstanding [Roll Forward]
Balance (in shares)			6,268
Options granted (weighted average fair value $3.25 per share) (in shares)			1,416
Options exercised (in shares)			(296)
Options cancelled/forfeited (in shares)			(309)
Balance (in shares)	7,079		7,079
Vested and expected to vest (in shares)	5,962		5,962
Options exercisable (in shares)	3,917		3,917
Weighted-Average Exercise Price [Roll Forward]
Balance (in dollars per share)			$ 6.31
Options granted (weighted average fair value $3.27 per share) (in dollars per share)			7.98
Options exercised (in dollars per share)			4.83
Options cancelled/forfeited (in dollars per share)			6.87
Balance (in dollars per share)	$ 6.69		6.69
Vested and expected to vest (in dollars per share)	6.51		6.51
Options exercisable (in dollars per share)	$ 6.09		$ 6.09
Weighted Average Remaining Contractual Term [Abstract]
Balance			7 years 18 days
Vested and expected to vest			6 years 8 months 1 day
Options exercisable			5 years 7 months 6 days
Aggregate Intrinsic Value [Abstract]
Balance	$ 6,303		$ 6,303
Vested and expected to vest	6,177		6,177
Options exercisable	5,575		$ 5,575
Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant date fair value of options granted (in dollars per share)			$ 3.25
Total pre-tax intrinsic value for options exercised	$ 100	$ 2,900	$ 900	$ 3,400