FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Number of Operating Segments			3
Net Operating Revenues	$ 1,417	$ 1,669	$ 4,900	$ 5,292
Investment Management Services [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	1,171	1,384	3,684	4,405
Investment Management Services [Member] | U.S. Global Investors Funds [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	1,000	1,300	3,100	4,100
Investment Management Services [Member] | U.S. Global ETFs [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	165	98	534	239
Investment Management Services - Canada [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	246	285	1,216	887
Investment Management Services - Canada [Member] | Galileo Funds [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	$ 243	215	$ 1,200	663
Investment Management Services - Canada [Member] | Other advisory clients [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues		$ 66		$ 214