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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - USD ($)
 3 Months Ended 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Jun. 30, 2021
U.S. Global Investors Funds [Member]          
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]          
Aggregate Fees Waived and Expenses Borne $ 161,000 $ 185 $ 319,000 $ 401  
Administrative fee rate     0.05%    
U.S. Global ETFs [Member]          
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]          
Unitary Management Fee, Percentage of Average Net Assets     0.60%    
U.S. Global Jets UCITS ETF [Member]          
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]          
Unitary Management Fee, Percentage of Average Net Assets     0.65%    
Equity Funds [Member] | U.S. Global Investors Funds [Member]          
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]          
Base percentage adjustment, fund performance not within benchmark index 0.25%   0.25%    
Minimum performance to designated benchmark over prior rolling twelve months, percent 5.00%   5.00%    
Fund Clients [Member]          
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]          
Receivables, Net, Current $ 2,000,000   $ 2,000,000   $ 2,400,000
Fund Clients [Member] | U.S. Global Investors Funds [Member]          
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]          
Receivables, Net, Current 315,000   315,000   432,000
Fund Clients [Member] | U.S. Global ETFs [Member]          
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]          
Receivables, Net, Current $ 1,700,000   $ 1,700,000   $ 2,000,000