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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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Aggregate fees waived and expenses borne.

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Base percentage adjustment when fund performance is not within limits to benchmark index.

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The unitary management fee as a percentage of average net assets.

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