Equity-Accounted Investments And Other Long-Term Assets (Narrative-Equity-accounted Investments) (Details) R / shares in Units, R in Millions				1 Months Ended	3 Months Ended		9 Months Ended	12 Months Ended
	Aug. 10, 2023 USD ($)	Aug. 10, 2023 ZAR (R) R / shares	Feb. 03, 2021 USD ($)	Oct. 31, 2020 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($) shares	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 USD ($)	Dec. 31, 2023 shares	Sep. 30, 2022 R / shares	Sep. 30, 2020 USD ($)
Schedule of Equity Method Investments [Line Items]
Equity Method Investment Realized Gain Loss On Disposal								$ 0	$ (205,000)	$ (376,000)
Proceeds from disposal of equity-accounted investments								3,508,000	656,000	865,000
Bank Frick [Member]
Schedule of Equity Method Investments [Line Items]
Consideration amount from disposal of discontinued operation including liabilities			$ 18,600,000
Amount payable to terminate all existing arrangements and settle all liabilities			3,600,000
Fair value of consideration received			$ 15,000,000.0
Proceeds from disposal of equity-accounted investments								0	$ 0	11,390,000
Bank Frick [Member] | Frick Family Foundation [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of retained equity ownership interest disposed			35.00%
Consideration amount from disposal of discontinued operation including liabilities			$ 30,000,000
Carbon Tech Limited [Member]
Schedule of Equity Method Investments [Line Items]
Cash consideration received on transaction								500,000
Equity Method Investment Realized Gain Loss On Disposal								$ 250,000
Percentage of retained equity ownership interest disposed								25.00%
Allowance for doubtful loans receivable										1,000,000.0
Carbon Tech Limited [Member] | Loan [Member]
Schedule of Equity Method Investments [Line Items]
Debt, face value						$ 3,000,000
Notes payable amount						$ 750,000
Finbond [Member]
Schedule of Equity Method Investments [Line Items]
Investment shares owned | shares												220,523,358
Equity ownership percentage								0.00%	28.00%			27.80%
Cash consideration received on transaction	$ 3,500,000	R 64.2
Sale price per share | R / shares		R 0.2911
Equity Method Investment Realized Gain Loss On Disposal	$ 0								$ (400,000)	$ (400,000)
Number of shares sold | shares									25,456,545	22,841,030
Impairment loss on equity method investment					$ 1,200,000				$ 1,100,000
Share price per share | R / shares		R 0.2911											R 0.49
Percentage of issued and outstanding shares owned by three shareholders									80.00%
Liquidity discount						25.00%				15.00%
Carbon [Member]
Schedule of Equity Method Investments [Line Items]
Investment amount owned										$ 0
Amount received at closing from interest sold					250,000
Sale of interest, amount owned in twelve months					$ 250,000
Sale of interest, remaining amount							$ 750,000
Carbon [Member] | Carbon Tech Limited [Member]
Schedule of Equity Method Investments [Line Items]
Investment amount owned										$ 0
V2 Limited [Member]
Schedule of Equity Method Investments [Line Items]
Allowance for doubtful loans receivable											$ 1,500,000
Working capital facility											5,000,000.0			$ 1,500,000
Amount drawn from working capital facility grant				$ 1,000,000.0							$ 500,000