Inventory (Narrative) (Details) $ in Thousands, R in Millions	3 Months Ended
Sep. 30, 2023 ZAR (R)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)
Inventory [Line Items]
Finished goods		$ 24,882	$ 24,488
Airtime Inventory Subject To Sale Restrictions [Member]
Inventory [Line Items]
Finished goods		$ 8,500	$ 8,600
Amount per month of purchased inventory agreement \| R	R 10

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_InventoryFinishedGoods
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant