Commitments and Contingencies (Narrative) (Details)	12 Months Ended
	Jun. 30, 2021 USD ($) vendor	Jun. 30, 2020 USD ($) vendor	Jun. 30, 2019 USD ($) vendor
Long-term Purchase Commitment [Line Items]
Capital expenditures	$ 2,363,000	$ 6,387,000	$ 5,797,000
Minimum
Long-term Purchase Commitment [Line Items]
Termination period under terms of distribution agreement (days)	30 days
Capital expenditures	$ 5,000,000
Maximum
Long-term Purchase Commitment [Line Items]
Termination period under terms of distribution agreement (days)	120 days
Capital expenditures	$ 8,000,000
Supplier Concentration Risk | Sales
Long-term Purchase Commitment [Line Items]
Concentration risk, supplier | vendor	10	10	10
Network1
Long-term Purchase Commitment [Line Items]
Escrow deposits received from seller	$ 0	$ 0
Amount released from escrow	1,100,000
Cash held in escrow	4,000,000	$ 4,800,000
Undiscounted pre-acquisition contingencies, minimum	4,000,000
Undiscounted pre-acquisition contingencies, maximum	$ 16,200,000