Basis Of Presentation And Summary Of Significant Accounting Policies (Impact Of Restatement On Affected Lines In Processing And Total Columns) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	$ 32,305	$ 35,136	$ 38,918	$ 67,441	$ 85,134
Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	18,812	21,518	22,847	40,330	48,940
South Africa [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	31,427	33,580	38,068	65,007	83,085
South Africa [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	17,934	19,962	21,997	37,896	46,891
Rest Of World [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	878	1,556	850	2,434	2,049
Rest Of World [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	878	1,556	850		2,049
Processing Fees [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	15,330	16,929	16,236	32,259	31,679
Processing Fees [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	14,755	16,330	14,938	31,085	29,132
Processing Fees [Member] | South Africa [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	14,452	15,373	15,386	29,825	29,630
Processing Fees [Member] | South Africa [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	13,877	14,774	14,088	28,651	27,083
Processing Fees [Member] | Rest Of World [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	878	1,556	850	2,434	2,049
Processing Fees [Member] | Rest Of World [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	$ 878	1,556	850	$ 2,434	2,049
As Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		37,113	40,567		88,505
As Reported [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		23,495	24,496		52,311
As Reported [Member] | South Africa [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		35,557	39,717		86,456
As Reported [Member] | South Africa [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		21,939	23,646		50,262
As Reported [Member] | Processing Fees [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		18,906	17,885		35,050
As Reported [Member] | Processing Fees [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		18,307	16,587		32,503
As Reported [Member] | Processing Fees [Member] | South Africa [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		17,350	17,035		33,001
As Reported [Member] | Processing Fees [Member] | South Africa [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		16,751	15,737		30,454
Correction [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		(1,977)	(1,649)		(3,371)
Correction [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		(1,977)	(1,649)		(3,371)
Correction [Member] | South Africa [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		(1,977)	(1,649)		(3,371)
Correction [Member] | South Africa [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		(1,977)	(1,649)		(3,371)
Correction [Member] | Processing Fees [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		(1,977)	(1,649)		(3,371)
Correction [Member] | Processing Fees [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		(1,977)	(1,649)		(3,371)
Correction [Member] | Processing Fees [Member] | South Africa [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		(1,977)	(1,649)		(3,371)
Correction [Member] | Processing Fees [Member] | South Africa [Member] | Processing [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		$ (1,977)	$ (1,649)		$ (3,371)