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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - Disaggregation of Revenue - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 4,917 | $ 6,261
Investment and Advisory Services [Member] | U.S. Global ETFs [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 588 | 701
Investment and Advisory Services [Member] | Offshore Clients [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 3
Administrative Service [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 185 | 248
Administrative Service [Member] | U.S. Global Investors Funds [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 185 | 248
Investment Management Services [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 3,459 | 4,837
Investment Management Services - Canada [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,458 | 1,424
Investment and Advisory Services [Member] | Base Advisory Fee [Member[ | U.S. Global Investors Funds [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 3,230 | 4,424
Investment and Advisory Services [Member] | Base Advisory Fee [Member[ | Investment Management Services - Canada [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 537 | 960
Investment and Advisory Services [Member] | Investment Performance [Member] | U.S. Global Investors Funds [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | (544) | (539)
Investment and Advisory Services [Member] | Investment Performance [Member] | Investment Management Services - Canada [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 921 | $ 464

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- Definition 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 + Details
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