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BASIS OF PRESENTATION (Details) - USD ($) $ in Thousands |  | 6 Months Ended |
--- | --- | --- | ---
Jul. 01, 2018 | Dec. 31, 2018 | Jun. 30, 2018
BASIS OF PRESENTATION (Details) [Line Items] |  |  |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net |  | $ 9,500 | $ 9,600
Cumulative Effect on Retained Earnings, before Tax | $ 3,100 |  |
Cumulative Effect on Retained Earnings, Tax | $ 1,049 |  |
U.S. Global Investors Funds [Member] | Equity Funds [Member] |  |  |
BASIS OF PRESENTATION (Details) [Line Items] |  |  |
Base percentage adjustment, fund performance not within benchmark index |  | 0.25% |
Minimum performance to decignated benchmark over prior rolling twelve months, percentage |  | 5.00% |
Galileo [Member] |  |  |
BASIS OF PRESENTATION (Details) [Line Items] |  |  |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions |  | 65.00% |

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