INVESTMENT MANAGEMENT AND OTHER FEES (Details) - Disaggregation of Revenue - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 4,476	$ 3,459
Investment and Advisory Services [Member] | U.S. Global ETFs [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,743	588
Investment Management Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	4,311	3,274
Administrative Service [Member]
Disaggregation of Revenue [Line Items]
Revenues	165	185
Administrative Service [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	165	185
Investment and Advisory Services [Member] | Base Advisory Fee [Member[ | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,093	3,230
Investment and Advisory Services [Member] | Investment Performance [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ (525)	$ (544)