Business Combination - Post-Acquisition Financial Information (Details) - Jun. 30, 2014 - Galileo [Member] - USD ($) $ in Thousands		Total
Business Acquisition [Line Items]
Total revenues		$ 234
Net income		18
Net income attributable to U.S. Global Investors, Inc.		12
Costs associated with the acquisition	[1]	$ 33

[1] Costs associated with the Galileo acquisition are included in general and administrative expenses in the Consolidated Statements of Operations.