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Document And Entity Information - shares
 6 Months Ended
Dec. 31, 2019
Feb. 03, 2020
Document And Entity Information [Abstract]    
Entity Registrant Name NET 1 UEPS TECHNOLOGIES INC  
Entity Central Index Key 0001041514  
Document Type 10-Q  
Document Period End Date Dec. 31, 2019  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --06-30  
Title of 12(b) Security Common stock, par value $0.001 per share  
Trading Symbol UEPS  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   56,568,425