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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Jun. 30, 2021
U.S. Global Investors Funds [Member] |  |  |
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items] |  |  |
Aggregate Fees Waived and Expenses Borne | $ 158 | $ 216 |
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% |  |
Minimum performance to designated benchmark over prior rolling twelve months, percent | 5.00% |  |
Fund Clients [Member] |  |  |
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items] |  |  |
Receivables, Net, Current | $ 2,100 |  | $ 2,400
Fund Clients [Member] | U.S. Global Investors Funds [Member] |  |  |
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items] |  |  |
Receivables, Net, Current | 371 |  | 432
Fund Clients [Member] | U.S. Global ETFs [Member] |  |  |
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items] |  |  |
Receivables, Net, Current | $ 1,800 |  | $ 2,000

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