EARNINGS PER SHARE (Details) - Computation for Basic and Diluted Earnings Per Share - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Net Income (Loss)
Income (loss) from continuing operations (in Dollars)	$ 264	$ (872)
Less: Income attributable to non-controlling interest in subsidiary (in Dollars)	1	3
Income (loss) from continuing operations attributable to U.S. Global Investors, Inc. (in Dollars)	263	(875)
Income from discontinued operations attributable to U.S. Global Investors, Inc. (in Dollars)	0	7
Net income (loss) attributable to U.S. Global Investors, Inc. (in Dollars)	$ 263	$ (868)
Weighted average number of outstanding shares
Basic (in Shares)	15,240,957	15,342,186
Effect of dilutive securities
Employee stock options (in Shares)	0	0
Diluted (in Shares)	15,240,957	15,342,186
Basic
Income (loss) from continuing operations	$ 0.02	$ (0.06)
Income from discontinued operations	0	0
Net income (loss)	0.02	(0.06)
Diluted
Income (loss) from continuing operations	0.02	(0.06)
Income from discontinued operations	0	0
Net income (loss)	$ 0.02	$ (0.06)