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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - Disaggregation of Revenue - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 904	$ 1,223
Base Advisory Fee [Member[ | Investment and Advisory Services [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	836	911
Base Advisory Fee [Member[ | Investment and Advisory Services [Member] | Investment Management Services - Canada [Member]
Disaggregation of Revenue [Line Items]
Revenues	100	179
Investment Performance [Member] | Investment and Advisory Services [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	(197)	(86)
Investment Performance [Member] | Investment and Advisory Services [Member] | Investment Management Services - Canada [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Investment and Advisory Services [Member] | U.S. Global ETFs [Member]
Disaggregation of Revenue [Line Items]
Revenues	121	166
Administrative Service [Member]
Disaggregation of Revenue [Line Items]
Revenues	44	53
Administrative Service [Member] | U.S. Global Investors Funds [Member]
Disaggregation of Revenue [Line Items]
Revenues	44	53
Investment Management Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	804	1,044
Investment Management Services - Canada [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 100	$ 179

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+ References

No definition available.

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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.

+ References

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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