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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - Disaggregation of Revenue - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]        
Revenues $ 6,574 $ 4,721 $ 13,095 $ 7,966
Investment and Advisory Services [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 6,525 4,669 12,995 7,864
Investment and Advisory Services [Member] | U.S. Global ETFs [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 5,452 3,647 10,768 5,937
Administrative Service [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 49 52 100 102
Administrative Service [Member] | U.S. Global Investors Funds [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 49 52 100 102
Investment and Advisory Services [Member] | Base Advisory Fee [Member[ | U.S. Global Investors Funds [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 932 907 1,898 1,803
Investment and Advisory Services [Member] | Investment Performance [Member] | U.S. Global Investors Funds [Member]        
Disaggregation of Revenue [Line Items]        
Revenues $ 141 $ 115 $ 329 $ 124