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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 | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2015 segment | Mar. 31, 2014 | Jun. 30, 2014
Segment Reporting Information [Line Items] |  |  |  |  |
Number of business segments |  |  | 3 us-gaap_NumberOfOperatingSegments |  |
Net operating revenues | $ 1,831 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees | $ 2,742 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees | $ 7,500 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees | $ 8,534 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees |
Net other income | 249 us-gaap_NonoperatingIncomeExpense | 403 us-gaap_NonoperatingIncomeExpense | 522 us-gaap_NonoperatingIncomeExpense | 1,497 us-gaap_NonoperatingIncomeExpense |
Income (loss) from continuing operations before income taxes | (969)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (12)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (1,904)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (1,459)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |
Loss from discontinued operations | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | (2)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | (238)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity |
Depreciation and amortization | 81 us-gaap_DepreciationAmortizationAndAccretionNet | 62 us-gaap_DepreciationAmortizationAndAccretionNet | 246 us-gaap_DepreciationAmortizationAndAccretionNet | 191 us-gaap_DepreciationAmortizationAndAccretionNet |
Capital expenditures | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 40 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
Gross identifiable assets | 32,096 grow_GrossIdentifiableAssets |  | 32,096 grow_GrossIdentifiableAssets |  |
Deferred tax asset | 922 us-gaap_DeferredTaxAssetsNet |  | 922 us-gaap_DeferredTaxAssetsNet |  |
Total Assets | 33,018 us-gaap_Assets |  | 33,018 us-gaap_Assets |  | 37,846 us-gaap_Assets
Investment Management Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net operating revenues | 1,418 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 2,742 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 5,906 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 8,534 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 | (1,175)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | (409)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | (2,422)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | (2,950)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Loss from discontinued operations |  | (2)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |  | (238)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Depreciation and amortization | 63 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 62 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 190 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember | 191 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |
Capital expenditures | 0 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 | 6,979 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |  | 6,979 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesMember |  |
Investment Management Services - Canada |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net operating revenues | 413 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_InvestmentAdvisoryManagementAndAdministrativeFees / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 1,594 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 | (39)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 3 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / 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 |
Depreciation and amortization | 18 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 56 us-gaap_DepreciationAmortizationAndAccretionNet / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember | 0 us-gaap_DepreciationAmortizationAndAccretionNet / 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 | 1,790 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_InvestmentManagementServicesCanadaMember |  | 1,790 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 | 249 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 403 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 522 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 1,497 us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |
Income (loss) from continuing operations before income taxes | 245 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 397 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 515 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember | 1,491 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / 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 |
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 |
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 | $ 23,327 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |  | $ 23,327 grow_GrossIdentifiableAssets / us-gaap_StatementBusinessSegmentsAxis = grow_CorporateInvestmentsMember |  |

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