Equity-Accounted Investments And Other Long-Term Assets (Schedule Of Calculation Of Gain (Loss) On Disposal) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
Long Lived Assets Held For Sale Line Items [Line Items]
Loss on disposal of equity-accounted investments (Note 5)	$ 0	$ (112)		$ 0	$ 136
Finbond Group Limited [Member]
Long Lived Assets Held For Sale Line Items [Line Items]
Consideration received in cash	3,508	138		3,508	141
Less: carrying value sold	(2,112)	(157)		(2,112)	(160)
Less: release of foreign currency translation reserve from accumulated other comprehensive loss	(1,543)	(97)		(1,543)	(99)
Add: release of stock-based compensation charge related to equity-accounted investment	147	4		147	4
Gain (Loss) on sale	$ 0	$ (112)		$ 0	$ (114)
Carbon [Member]
Long Lived Assets Held For Sale Line Items [Line Items]
Consideration received in cash			$ 250
Less: carrying value sold			0
Gain (Loss) on sale			$ 250