Summary of Significant Accounting Policies (Allowance for Doubtful Accounts Activity) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Accounting Policies [Abstract]
Accounts Receivable Credit Period	30 days
Allowance for doubtful accounts activity
Beginning balance	$ 613	$ 800	$ 864
Provision for doubtful accounts	1,300	125	125
Write-offs	(154)	(312)	(189)
Ending balance	$ 1,759	$ 613	$ 800