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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - Disaggregation of Revenue - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Revenues	$ 1,223	$ 1,490
Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,170	1,433
Administrative Service [Member]
Disaggregation of Revenue [Line Items]
Revenues	53	57
Investment Management Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,044	1,272
Investment Management Services - Canada [Member]
Disaggregation of Revenue [Line Items]
Revenues	179	218
U.S. Global Investors Funds [Member] | Administrative Service [Member]
Disaggregation of Revenue [Line Items]
Revenues	53	57
U.S. Global Investors Funds [Member] | Base Advisory Fees [Member] | Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	911	1,145
U.S. Global Investors Funds [Member] | Investment Performance [Member] | Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	(86)	(116)
U.S. Global ETFs [Member] | Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	166	185
Offshore Clients [Member] | Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	1
Investment Management Services - Canada [Member]
Disaggregation of Revenue [Line Items]
Revenues	179	218
Investment Management Services - Canada [Member] | Base Advisory Fees [Member] | Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	179	218
Investment Management Services - Canada [Member] | Investment Performance [Member] | Investment and Advisory Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0

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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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

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-Publisher FASB
-Name Accounting Standards Codification
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