XML 70 R59.htm IDEA: XBRL DOCUMENT v3.20.4
Inventory (Narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Jun. 30, 2020
Inventory [Line Items]    
Finished goods $ 20,939 $ 15,618
Airtime Inventory Subject To Sale Restrictions [Member]    
Inventory [Line Items]    
Finished goods $ 16,400