Inventory (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	[1]	Jun. 30, 2018	[1]
Inventory [Line Items]
Loss related to airtime inventory	$ 1,298	$ 0		$ 0
Wholesale Airtime Inventory Market [Member]
Inventory [Line Items]
Loss related to airtime inventory	$ 1,300

[1] Certain amounts have been restated to correct the misstatement discussed in Note 1