XML 33 R24.htm IDEA: XBRL DOCUMENT
v3.8.0.1

BASIS OF PRESENTATION (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Jun. 30, 2017
BASIS OF PRESENTATION (Details) [Line Items] |  |
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net | $ 8.9 | $ 11.3
Galileo [Member] |  |
BASIS OF PRESENTATION (Details) [Line Items] |  |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions | 65.00% |

X
- References No definition available. + Details
Name: | grow_BASISOFPRESENTATIONDetailsLineItems
Namespace Prefix: | grow_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. + References No definition available. + Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net carrying amount of the assets and liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), when the reporting entity is not the VIE's primary beneficiary. + References No definition available. + Details
Name: | us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=grow_GalileoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |