FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) - Investment Management Services [Member] - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019
U.S. Global Investors Funds [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues	$ 2,700	$ 2,900
U.S. Global ETFs [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues	$ 1,700	$ 588

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration