Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019
Other Commitments [Line Items]
Actual cash expenditures	$ 940	$ 990
Network1 [Member]
Other Commitments [Line Items]
Cash held in escrow	6,100		$ 6,500
Minimum [Member]
Other Commitments [Line Items]
Actual cash expenditures	4,000
Maximum [Member]
Other Commitments [Line Items]
Actual cash expenditures	$ 6,000