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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2022 | Mar. 31, 2021 | Jun. 30, 2021
U.S. Global Investors Funds [Member] |  |  |  |  |
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items] |  |  |  |  |
Aggregate Fees Waived and Expenses Borne | $ 147,000 | $ 153,000 | $ 465 | $ 554 |
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% |  |
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 | 246,000 |  | 246,000 |  | 432,000
Fund Clients [Member] | U.S. Global ETFs [Member] |  |  |  |  |
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items] |  |  |  |  |
Receivables, Net, Current | $ 1,800,000 |  | $ 1,800,000 |  | $ 2,000,000
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% |  |

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