Inventory (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Jun. 30, 2024
Inventory [Line Items]
Finished goods	$ 15,611	$ 15,364
Airtime Inventory Subject To Sale Restrictions [Member]
Inventory [Line Items]
Finished goods		$ 1,800

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
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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