Accounts Receivable, Net And Other Receivables And Finance Loans Receivable, Net (Schedule Of Accounts Receivable, Net And Other Receivables) (Details) - Accounts Receivable [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, trade, net	$ 8,458	$ 12,637
Accounts receivable, trade, gross	8,711	13,298
Allowance for doubtful accounts receivable, end of period	253	661
Beginning of year	661	678
Reversed to statement of operations	(155)	(22)
Charged to statement of operations	181	3,118
Utilized	(151)	(3,059)
Deconsolidation	(178)	(38)
Foreign currency adjustment	(105)	(16)
Taxes refundable related to sale of Net1 Korea (Note 3)	19,796	0
Current portion of amount outstanding related to sale of remaining interest in DNI (Note 10)	2,756	0
Other receivables	9,058	11,238
Total accounts receivable, net	43,068	31,135
Carbon [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan provided	3,000	3,000
DNI [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan provided	$ 0	$ 4,260