EARNINGS PER SHARE (Details) - Schedule of Earnings Per Share, Basic and Diluted - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share Basic And Diluted Abstract
Net Loss	$ (3,615)	$ (1,232)
Less: Net Loss Attributable to Non-Controlling Interest	(48)	(83)
Net Loss Attributable to U.S. Global Investors, Inc.	$ (3,567)	$ (1,149)
Weighted average number of outstanding shares
Basic	15,130,235	15,144,884
Effect of dilutive securities
Employee stock options	0	0
Diluted	15,130,235	15,144,884
Earnings Per Share Attributable to U.S. Global Investors, Inc.
Basic	$ (0.24)	$ (0.08)
Diluted	$ (0.24)	$ (0.08)