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BASIS OF PRESENTATION (Details) (Galileo Global Equity Advisors Inc) | 9 Months Ended
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Mar. 31, 2015
Galileo Global Equity Advisors Inc |
Subsidiary, Sale of Stock [Line Items] |
Ownership in subsidiary (percentage) | 65.00%us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = grow_GalileoGlobalEquityAdvisorsIncMember

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
- Details
Name: | us-gaap_SubsidiarySaleOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration