Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Trade Receivable Allowances
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	$ 7	$ 17	$ 75
Chargeback Additions	59	93	162
Chargeback Reductions	(61)	(103)	(220)
Ending Balance	5	7	17
Valuation Allowance for Deferred Tax Assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	48,370	67,703	53,760
Chargeback Additions	1,036	828	13,959
Chargeback Reductions	(2,602)	(20,161)	(16)
Ending Balance	$ 46,804	$ 48,370	$ 67,703