Summary of Significant Accounting Policies (Allowance for Doubtful Accounts Activity) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Allowance for doubtful accounts activity
Beginning balance	$ 712	$ 1,437	$ 451
Provision for doubtful accounts	465	375	1,121
Write-offs	(313)	(1,100)	(135)
Ending balance	$ 864	$ 712	$ 1,437