XML 21 R29.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Investments - Additional Information (Detail) (USD $) | Mar. 31, 2014 | Jun. 30, 2013 | Dec. 31, 2013 Government Fund Mutual funds
--- | --- | --- | ---
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |  |  |  |
Carrying value of investments held | $ 25,300,000 |  |  |  |
Cost basis of investments held | 24,600,000 |  |  |  |
Carrying value of investments to Company's total assets | 69.30% |  |  |  |
Other investments | 385,439 |  | 0 |  |
Trading securities, at fair value | $ 18,645,573 | [1] | $ 4,758,220 | [1] | $ 14,118,943
[1] | Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.

X
- Definition Market value of investments to company's assets. + References No definition available. + Details
Name: | grow_MarketValueOfInvestmentsToCompanysAssets
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 Other long-term investments not otherwise specified in the taxonomy, not including investments in marketable securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 12 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph f -Article 7 + Details
Name: | us-gaap_OtherLongTermInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 + Details
Name: | us-gaap_TradingSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant