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EARNINGS PER SHARE (Details) - Schedule of Earnings Per Share, Basic and Diluted - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Earnings Per Share Basic And Diluted Abstract
Net Income (Loss)	$ (3,015)	$ 884	$ (4,247)	$ 2,120
Less: Net Income Attributable to Non-Controlling Interest	196	135	113	101
Net Income (Loss) Attributable to U.S. Global Investors, Inc.	$ (3,211)	$ 749	$ (4,360)	$ 2,019
Weighted average number of outstanding shares
Basic	15,145,702	15,160,589	15,145,293	15,171,620
Effect of dilutive securities
Employee stock options	0	0	0	0
Diluted	15,145,702	15,160,589	15,145,293	15,171,620
Earnings Per Share Attributable to U.S. Global Investors, Inc.
Basic	$ (0.21)	$ 0.05	$ (0.29)	$ 0.13
Diluted	$ (0.21)	$ 0.05	$ (0.29)	$ 0.13

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