Income Taxes (Narrative) (Details)	1 Months Ended	3 Months Ended								12 Months Ended							12 Months Ended
	Jun. 30, 2006 EUR (€)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Sep. 30, 2013 USD ($)	Jun. 30, 2013 USD ($)	Mar. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Sep. 30, 2012 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2014 MediKredit [Member] USD ($)	Jun. 30, 2014 Net1 UTA [Member] USD ($)	Jun. 30, 2013 Net1 UTA [Member] USD ($)	Jun. 30, 2012 Net1 UTA [Member] USD ($)	Jun. 30, 2014 Net 1 Austria [Member] USD ($)
Valuation Allowance [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate												(30.33%)
Net deferred taxation benefit												$ 18,300,000
Foreign tax credits, recorded as charge												8,200,000
Operating loss		(42,647,000)	(23,949,000)	(18,802,000)	(16,400,000)	(13,591,000)	4,726,000	(4,972,000)	(9,325,000)	(101,798,000)	(23,162,000)	(61,150,000)
License payment	50,760,000
Amortized useful lives of intangible assets																	15 years
Deferred tax assets		14,353,000				9,483,000				14,353,000	9,483,000			20,000	50,000	40,000
Percent of goodwill recognized that can be deducted																	50.00%
Unused foreign tax credits		0				0				0	0
Foreign tax credits expiration period										10 years
Valuation allowances		25,153,000				54,117,000				25,153,000	54,117,000			8,000,000			7,900,000
Valuation allowance related to net operating loss carryforwards													3,100,000	8,900,000
Unrecognized tax benefit		1,200,000				1,200,000				1,200,000	1,200,000
Accrued interest related to uncertain tax positions		$ 200,000				$ 200,000				$ 200,000	$ 200,000