INVESTMENT MANAGEMENT AND OTHER FEES	12 Months Ended
INVESTMENT MANAGEMENT AND OTHER FEES	Jun. 30, 2016
Investment Management And Other Fees [Abstract]
Investment Management And Other Fees [Text Block]	NOTE 5. INVESTMENT MANAGEMENT AND OTHER FEES The Company serves as investment adviser to USGIF and receives a fee based on a specified percentage of net assets under management. The advisory agreement for the equity funds within USGIF provides for a base advisory fee that is adjusted upwards or downwards by 0.25 percent if there is a performance difference of 5 percent or more between a fund’s performance and that of its designated benchmark index over the prior rolling 12 months. For the years ended June 30, 2016, 2015, and 2014, the Company realized a decrease in its base advisory fee of $132,000; $1.0 million; and $815,000, respectively, due to these performance adjustments. The Company has agreed to contractually limit the expenses of the Near-Term Tax Free Fund through April 2017. The Company has voluntarily waived or reduced its fees and/or agreed to pay expenses on the remaining funds. These caps will continue on a voluntary basis at the Company’s discretion. The aggregate fees waived and expenses borne by the Company were $1.3 million; $1.3 million; and $2.4 million for the years ended June 30, 2016, 2015, and 2014, respectively. Management cannot predict the impact of future waivers due to the number of variables and the range of potential outcomes. In addition, the Company has an administrative services agreement with USGIF. Effective December 2013, the Funds’ Board of Trustees increased the administrative services fees paid to the Company from an annual rate of 0.08 percent to 0.10 percent per investor class and from 0.06 percent to 0.08 percent per institutional class of each Fund, based on average daily net assets, plus $10,000 per Fund. Effective November 1, 2014, the annual per fund fee changed to $7,000. Effective December 10, 2015, upon amending the agreement and reducing the administrative services performed, the annual rate changed to 0.05 percent for each investor class and to 0.04 percent for each institutional class, and the per fund fee was eliminated. The Company also serves as investment advisor to U.S. Global Jets ETF. The ETF commenced operations in April 2015, and fiscal 2016 was its first full year of operations. The Company receives a unitary management fee of 0.60 percent of average net assets and has agreed to bear all expenses of the ETF. The Company recorded advisory fees from the ETF totaling $296,000 and $26,000 in fiscal 2016 and fiscal 2015, respectively. The Company provides advisory services to offshore clients and received a monthly advisory fee based on the net asset values of the clients and performance fees based on the overall increase in net asset values, if any. The Company recorded advisory fees from these clients totaling $91,000; $130,000; and $190,000 for the years ended June 30, 2016, 2015, and 2014, respectively. The Company recorded no performance fees from these clients for the years ended June 30, 2016, and 2015, and $4,000 for the year ended June 30, 2014. One of the offshore funds liquidated in November 2013. The contracts between the Company and the two current offshore clients expire periodically, and management anticipates that its remaining offshore clients will renew the contracts. Galileo provides advisory services for clients in Canada and receives advisory fees based on the net asset values of the clients. Galileo recorded advisory fees from these clients totaling $1.2 million; $2.0 million; and $234,000 for the years ended June 30, 2016, 2015, and 2014, respectively. Prior to December 10, 2015, in connection with obtaining and/or providing administrative services to the beneficial owners of USGIF through broker-dealers, banks, trust companies and similar institutions which provide such services, the Company received shareholder services fees at an annual rate of up to 0.20 percent of the value of shares held in accounts at the institutions. The Company also received distribution fees from USGIF based on average net assets. The Company no longer receives shareholder services or distribution fees, which are included in “discontinued operations” in the Consolidated Statements of Operations. See further discussion in Note 3, Discontinued Operations. Prior to conversion to a third party transfer agent on December 9, 2013, USSI received transfer agent fees from USGIF based on the number of shareholder accounts, transaction and activity-based fees and certain miscellaneous fees. The transfer agency fees are included in “discontinued operations” in the Consolidated Statements of Operations. See further discussion in Note 3, Discontinued Operations. The following changes were made during fiscal year 2014 to the mutual funds the Company manages: (1) the Global Emerging Markets Fund liquidated on October 31, 2013, (2) the MegaTrends Fund was reorganized into the Holmes Growth Fund (renamed Holmes Macro Trends Fund), (3) the Tax Free Fund was reorganized into the Near-Term Tax Free Fund, (4) the U.S. Government Securities Savings Fund changed from a money market fund to the U.S. Government Securities Ultra-Short Bond Fund (“Government Fund”), and (5) the U.S. Treasury Securities Cash Fund was liquidated on December 27, 2013. Prior to the Government Fund conversion in December 2013, the Company voluntarily agreed to waive fees and/or reimburse the fund to the extent necessary to maintain the fund’s yield at a certain level as determined by the Company (Minimum Yield). The Company may recapture any fees waived and/or expenses reimbursed to maintain Minimum Yield within three years after the end of the fund’s fiscal year of such waiver and/or reimbursement to the extent that such recapture would not cause the funds’ yield to fall below the Minimum Yield. Thus, $498,000 of the waiver for the Government Fund is recoverable by the Company through December 31, 2016. The U.S. Treasury Securities Cash Fund also had waivers subject to future recapture; however, because the fund was liquidated in December 2013, there will be no recapture.