XML 51 R39.htm IDEA: XBRL DOCUMENT
v3.10.0.1

INVESTMENTS (Details) $ in Thousands, shares in Millions | 12 Months Ended
--- | ---
Jun. 30, 2018 USD ($) shares | Jun. 30, 2017 USD ($)
INVESTMENTS (Details) [Line Items] |  |  |
Fair value of investments held |  | $ 15,265 | $ 13,121
Cost basis of investments held |  | $ 12,313 | 13,588
Market value of investments to Company's total assets |  | 52.80% |
Other investments |  | $ 2,207 | 2,130
Equity Method Investments |  | 283 | 0
Available-for-sale, net unrealized gain (loss), gross |  | 3,138 | 461
Available-for-sale, net unrealized gain (loss), net of tax |  | 2,089 | 461
Available-for-sale securities, fair value | [1],[2] | 7,086 | 3,401
Proceeds from Sale of Available-for-sale Securities |  | 2,130 | 649
Available-for-sale Securities, Gross Realized Gains |  | 675 | 34
Available-for-sale Securities, Gross Realized Losses |  | 6 | 3
Other-than-temporary impairments |  | 0 | 411
Cost-method Investments, Other than Temporary Impairment |  | $ 0 | $ 72
Percentage of Financial Assets Derived From Level 1 Inputs Measured at Fair Value |  | 100.00% | 100.00%
Debt Securities, Trading, and Equity Securities, FV-NI | [3],[4] | $ 8,179 | $ 9,720
Income (Loss) from Equity Method Investments |  | 1,624 | 0
Corporate Debt Securities [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Available for Sale Securities, Par Value |  | 1,700 |
Available-for-sale securities, fair value | [2] | 0 | 1,469
Debt Securities, Available-for-sale, Realized Gain |  | 638 |
Fair Value, Inputs, Level 1 [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Fair value of investments held |  | 15,265 | 12,706
Available-for-sale securities, fair value |  | 7,086 | 3,401
Debt Securities, Trading, and Equity Securities, FV-NI | [3] | 8,179 | 9,305
Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Available-for-sale securities, fair value |  | 0 | 1,469
Galileo Partners Fund [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Income (Loss) from Equity Method Investments |  | $ 1,700 |
Galileo Partners Fund [Member] | Minimum [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Equity Method Investment, Ownership Percentage |  | 23.00% |
Galileo Partners Fund [Member] | Maximum [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Equity Method Investment, Ownership Percentage |  | 30.00% |
Galileo Technology and Blockchain Fund [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Equity Method Investments |  | $ 283 |
Equity Method Investment, Aggregate Cost |  | $ 401 |
Equity Method Investment, Ownership Percentage |  | 25.00% |
Income (Loss) from Equity Method Investments |  | $ (99) |
Fair Value Measured at Net Asset Value Per Share [Member] | Offshore Fund [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Debt Securities, Trading, and Equity Securities, FV-NI |  |  | $ 415
Impaired Securities [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Number of positions, subject to impairment loss |  |  | 4
Available-for-Sale Securities, Combined Cost Basis of Impaired Securities |  |  | $ 627
Available-for-Sale Securities, Combined Fair Value of Impaired Securities |  |  | $ 216
Number of Impaired Securities Held at Cost |  |  | 1
Cost Method Investments, Original Cost |  |  | $ 72
Cost Method Investments |  |  | $ 0
HIVE Blockchain Technologies Ltd. ("HIVE") [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Investment Owned, Balance, Shares (in Shares) | shares |  | 10 |
Investment Owned, at Cost |  | $ 2,400 |
Investment Owned, Direct Percentage |  | 3.20% |
Investment Owned, Percentage |  | 3.20% |
HIVE Blockchain Technologies Ltd. ("HIVE") [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Available-for-sale securities, fair value |  | $ 5,600 |
HIVE Blockchain Technologies Ltd. ("HIVE") [Member] | Galileo Partners Fund [Member] |  |  |
INVESTMENTS (Details) [Line Items] |  |  |
Equity Method Investment, Aggregate Cost |  | $ 500 |
[1] | Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of June 30, 2018, are $3,138 and $2,089, respectively, and as of June 30, 2017, are $461 and $461, respectively.
[2] | Unrealized gains and losses on available-for-sale securities are excluded from earnings and recorded in other comprehensive income (loss) as a separate component of shareholders' equity until realized.
[3] | In accordance with Subtopic 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Balance Sheets.
[4] | Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.

X
- Definition Par value of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
Name: | grow_AvailableForSaleSecuritiesParValue
Namespace Prefix: | grow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the combined cost of impaired debt and equity securities for the period, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
Name: | grow_AvailableforSaleSecuritiesCombinedCostBasisOfImpairedSecurities
Namespace Prefix: | grow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The combined fair value amount of impaired securities, for the period, of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
Name: | grow_AvailableforSaleSecuritiesCombinedFairValueOfImpairedSecurities
Namespace Prefix: | grow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of available-for-sale securities subject to impairment loss. + References No definition available. + Details
Name: | grow_AvailableforSaleSecuritiesSubjectToImpairmentLossQualitativeDisclosureNumberOfPositions
Namespace Prefix: | grow_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, net of tax of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References No definition available. + Details
Name: | grow_AvailableforSaleUnrealizedHoldingGainsLossesOnAvailableforSaleSecuritiesNetOfTax
Namespace Prefix: | grow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Percentage of direct ownership in investment. + References No definition available. + Details
Name: | grow_InvestmentOwnedDirectPercentage
Namespace Prefix: | grow_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Direct and indirect percentage of ownership of common stock or equity participation in the investee. + References No definition available. + Details
Name: | grow_InvestmentOwnedPercentage
Namespace Prefix: | grow_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of impaired securities held at cost. + References No definition available. + Details
Name: | grow_NumberOfImpairedSecuritiesHeldAtCost
Namespace Prefix: | grow_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of financial assets derived from Level 1 inputs measured at fair value. + References No definition available. + Details
Name: | grow_PercentageOfFinancialAssetsDerivedFromLevel1InputsMeasuredAtFairValue
Namespace Prefix: | grow_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Trading and available for sale securities cost. + References No definition available. + Details
Name: | grow_TradingAndAvailableforSaleSecuritiesAmortizedCost
Namespace Prefix: | grow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Trading and available for sale securities. + References No definition available. + Details
Name: | grow_TradingAndAvailableforSaleSecuritiesFairValueDisclosure
Namespace Prefix: | grow_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Value of fair value investments to company assets. + References No definition available. + Details
Name: | grow_ValueOfFairValueInvestmentsToCompanyAssets
Namespace Prefix: | grow_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before tax of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. + References No definition available. + Details
Name: | us-gaap_CostMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Original amount of cost-method investments at the acquisition date. + References No definition available. + Details
Name: | us-gaap_CostMethodInvestmentsOriginalCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the cost method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. + References No definition available. + Details
Name: | us-gaap_CostmethodInvestmentsOtherThanTemporaryImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleRealizedGain
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents the aggregate cost of investments accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_EquityMethodInvestmentAggregateCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Cost of the investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841 + Details
Name: | us-gaap_InvestmentOwnedAtCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Balance held at close of period in number of shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010 + Details
Name: | us-gaap_InvestmentOwnedBalanceShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of long-term investments classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_OtherLongTermInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis. + References No definition available. + Details
Name: | us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26853-111562 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_TradingSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentAxis=grow_GalileoPartnersFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentAxis=grow_GalileoTechnologyAndBlockchainFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | grow_FairValueAxis=us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentAxis=grow_OffshoreFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentSecuritiesClassAxis=grow_ImpairedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentSecuritiesClassAxis=grow_HIVEBlockchainTechnologiesLtdHIVEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |