INVESTMENT MANAGEMENT AND OTHER FEES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
U.S. Global Investors Funds [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Aggregate Fees Waived and Expenses Borne	$ 141	$ 164	$ 407	$ 541
U.S. Global Investors Funds [Member] | Equity 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%
U.S. Global ETFs [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Unitary Management Fee, Percentage of Average Net Assets			0.60%
Fund Clients [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Receivables, Net, Current	$ 264		$ 264		$ 201
Fund Clients [Member] | U.S. Global Investors Funds [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Receivables, Net, Current	167		167		159
Fund Clients [Member] | U.S. Global ETFs [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Receivables, Net, Current	$ 97		$ 97		$ 42
Investor Class Shares [Member] | U.S. Global Investors Funds [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Administrative fee rate			0.05%
Institutional Class Shares [Member] | U.S. Global Investors Funds [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Administrative fee rate					0.04%