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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - Disaggregation of Revenue - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 3,245	$ 804
Base Advisory Fee [Member[ | U.S. Global Investors Funds [Member] | Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	896	836
Investment Performance [Member] | U.S. Global Investors Funds [Member] | Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	9	(197)
Investment and Advisory Services [Member] | U.S. Global ETFs [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,290	121
Investment Management Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,195	760
Administrative Service [Member]
Disaggregation of Revenue [Line Items]
Revenues	50	44
Administrative Service [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 50	$ 44

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