EARNINGS PER SHARE - Computation for Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Loss from continuing operations	$ (89)	$ (9)
Less: Income attributable to non-controlling interest in subsidiary	39	0
Loss from Continuing Operations	(128)	(9)
Loss from discontinued operations attributable to U.S. Global Investors, Inc.	0	(28)
Net Loss Attributable to U.S. Global Investors, Inc.	$ (128)	$ (37)
Weighted average number of outstanding shares, Basic (in shares)	15,429,327	15,471,268
Effect of dilutive securities
Employee stock options (in shares)	0	0
Diluted (in shares)	15,429,327	15,471,268
Basic:
Loss from continuing operations (in dollars per share)	$ (0.01)	$ 0.00
Loss from discontinued operations (in dollars per share)	$ 0.00	$ 0.00
Net loss (in dollars per share)	$ (0.01)	$ 0.00
Diluted:
Loss from continuing operations (in dollars per share)	$ (0.01)	$ 0.00
Loss from discontinued operations (in dollars per share)	$ 0.00	$ 0.00
Net loss (in dollars per share)	$ (0.01)	$ 0.00