INVESTMENT MANAGEMENT AND OTHER FEES (Details) - Disaggregation of Revenue - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 21,654	$ 4,476
Base Advisory Fee [Member[ | Investment and Advisory Services [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,836	3,093
Investment Performance [Member] | Investment and Advisory Services [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	482	(525)
Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	21,445	4,311
Investment and Advisory Services [Member] | U.S. Global ETFs [Member]
Disaggregation of Revenue [Line Items]
Revenues	17,127	1,743
Administrative Service [Member]
Disaggregation of Revenue [Line Items]
Revenues	209	165
Administrative Service [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 209	$ 165