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FINANCIAL INFORMATION BY BUSINESS SEGMENT - Schedule Details of Financial Information by Business Segment (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2014 segment | Dec. 31, 2013 | Jun. 30, 2014
Segment Reporting Information [Line Items] |  |  |  |  |
Number of business segments |  |  | 3 us-gaap_NumberOfOperatingSegments |  |
Net operating revenues | $ 2,371 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees | $ 2,740 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees | $ 5,668 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees | $ 5,792 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees |
Net other income | 53 us-gaap_NonoperatingIncomeExpense | 40 us-gaap_NonoperatingIncomeExpense | 273 us-gaap_NonoperatingIncomeExpense | 1,094 us-gaap_NonoperatingIncomeExpense |
Income (loss) from continuing operations before income taxes | (838)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (1,424)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (935)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (1,447)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |
Depreciation and amortization | 81 us-gaap_DepreciationAmortizationAndAccretionNet | 64 us-gaap_DepreciationAmortizationAndAccretionNet | 164 us-gaap_DepreciationAmortizationAndAccretionNet | 128 us-gaap_DepreciationAmortizationAndAccretionNet |
Loss from discontinued operations | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | (207)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | (236)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity |
Capital expenditures | 5 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 40 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
Gross identifiable assets | 33,596 grow_GrossIdentifiableAssets |  | 33,596 grow_GrossIdentifiableAssets |  |
Deferred tax asset | 915 us-gaap_DeferredTaxAssetsNet |  | 915 us-gaap_DeferredTaxAssetsNet |  |
Total Assets | 34,511 us-gaap_Assets |  | 34,511 us-gaap_Assets |  | 37,846 us-gaap_Assets
Investment Management Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net operating revenues | 1,852 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 2,740 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 4,487 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 5,792 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Net other income | 0 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 0 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 0 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 0 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Income (loss) from continuing operations before income taxes | (864)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | (1,464)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | (1,248)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | (2,541)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Depreciation and amortization | 63 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 64 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 126 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 128 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Loss from discontinued operations |  | (207)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |  | (236)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Capital expenditures | 5 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 40 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Gross identifiable assets | 7,515 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |  | 7,515 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |  |
Investment Management Services - Canada |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net operating revenues | 519 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 1,181 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |
Net other income | 0 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |
Income (loss) from continuing operations before income taxes | (25)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 43 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |
Depreciation and amortization | 18 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 38 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |
Loss from discontinued operations |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |
Capital expenditures | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |
Gross identifiable assets | 1,971 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |  | 1,971 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |  |
Corporate Investments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net operating revenues | 0 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |
Net other income | 53 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 40 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 273 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 1,094 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |
Income (loss) from continuing operations before income taxes | 51 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 40 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 270 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 1,094 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |
Depreciation and amortization | 0 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |
Loss from discontinued operations |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |
Capital expenditures | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |
Gross identifiable assets | $ 24,110 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |  | $ 24,110 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |  |

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