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INVESTMENT MANAGEMENT AND OTHER FEES (Details) - Disaggregation of Revenue - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 1,799 | $ 1,993 | $ 3,022 | $ 3,483
Investment and Advisory Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,756 | 1,929 | 2,926 | 3,362
Administrative Service [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 43 | 64 | 96 | 121
Investment Management Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 793 | 1,242 | 1,837 | 2,514
Investment Management Services - Canada [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,006 | 751 | 1,185 | 969
U.S. Global Investors Funds [Member] | Administrative Service [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 43 | 64 | 96 | 121
U.S. Global Investors Funds [Member] | Base Advisory Fees [Member] | Investment and Advisory Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 773 | 1,184 | 1,684 | 2,329
U.S. Global Investors Funds [Member] | Investment Performance [Member] | Investment and Advisory Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | (176) | (192) | (262) | (308)
U.S. Global ETFs [Member] | Investment and Advisory Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 153 | 184 | 319 | 369
Offshore Clients [Member] | Investment and Advisory Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 2 | 0 | 3
Investment Management Services - Canada [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,006 | 751 | 1,185 | 969
Investment Management Services - Canada [Member] | Base Advisory Fees [Member] | Investment and Advisory Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 136 | 287 | 315 | 505
Investment Management Services - Canada [Member] | Investment Performance [Member] | Investment and Advisory Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 870 | $ 464 | $ 870 | $ 464

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