CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Operating Revenues
Total Operating Revenue	$ 6,355	$ 914	$ 14,321	$ 2,605
Employee compensation and benefits	1,442	715	5,642	2,060
General and administrative	1,528	1,091	4,066	2,440
Advertising	44	37	162	111
Depreciation and amortization	49	50	147	152
	3,063	1,893	10,017	4,763
Operating Income (Loss)	3,292	(979)	4,304	(2,158)
Investment income (loss)	8,424	(441)	30,124	(3,922)
Income (loss) from equity method investments	(64)	(91)	420	(146)
Other Operating Revenue	0	0	444	0
Other income	33	29	92	90
	8,393	(503)	31,080	(3,978)
Income (Loss) from Continuing Operations Before Income Taxes	11,685	(1,482)	35,384	(6,136)
Provision for Income Taxes
Tax expense (benefit)	3,078	75	8,172	(174)
Income (Loss) from Continuing Operations	8,607	(1,557)	27,212	(5,962)
Discontinued Operations
Loss from discontinued operations of investment management services in Canada before income taxes	0	(85)	0	(338)
Tax benefit	0	0	0	0
Loss from Discontinued Operations	0	(85)	0	(338)
Net Income (Loss)	8,607	(1,642)	27,212	(6,300)
Less: Net Loss Attributable to Non-Controlling Interest from Discontinued Operations	0	(30)	0	(118)
Net Income (Loss) Attributable to U.S. Global Investors, Inc.	$ 8,607	$ (1,612)	$ 27,212	$ (6,182)
Basic Net Income (Loss) per Share
Income (loss) from continuing operations (in Dollars per share)	$ 0.57	$ (0.11)	$ 1.81	$ (0.4)
Loss from discontinued operations (in Dollars per share)	0	0	0	(0.01)
Net income (loss) (in Dollars per share)	0.57	(0.11)	1.81	(0.41)
Diluted Net Income (Loss) per Share
Income (loss) from continuing operations (in Dollars per share)	0.57	(0.11)	1.81	(0.4)
Loss from discontinued operations (in Dollars per share)	0	0	0	(0.01)
Net income (loss) (in Dollars per share)	$ 0.57	$ (0.11)	$ 1.81	$ (0.41)
Basic weighted average number of common shares outstanding (in Shares)	15,061,818	15,121,950	15,075,064	15,127,118
Diluted weighted average number of common shares outstanding (in Shares)	15,062,988	15,121,950	15,075,795	15,127,118
Investment Advisory Services [Member]
Operating Revenues
Revenues	$ 6,304	$ 875	$ 14,168	$ 2,477
Administrative Service [Member]
Operating Revenues
Revenues	$ 51	$ 39	$ 153	$ 128