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Related Party Transactions (Narrative) (Details)
$ in Thousands, R in Millions
3 Months Ended 12 Months Ended
Mar. 16, 2023
USD ($)
Mar. 22, 2022
USD ($)
Sep. 30, 2020
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2021
USD ($)
Mar. 22, 2022
ZAR (R)
Related Party Transaction [Line Items]            
Disgorgement proceeds recorded as an increase to additional paid-in capital         $ 98  
Commitment fee amount $ 8,900          
VCP Agreement [Member]            
Related Party Transaction [Line Items]            
Market capitalization benchmark amount | R           R 2,600.0
Commitment fee amount   $ 5,250        
VCP Agreement [Member] | Common Stock [Member]            
Related Party Transaction [Line Items]            
Value of shares obligated to issue from agreement | R           R 350.0
VCP [Member]            
Related Party Transaction [Line Items]            
Disgorgement proceeds recorded as an increase to additional paid-in capital     $ 100      
Related party transaction tax on capital contribution from shareholders     $ 20      
Disgorgement proceeds received from related party       $ 120    
Percent calculated per annum of support provided over period of extension           1.00%