INVESTMENT MANAGEMENT AND OTHER FEES	12 Months Ended
Jun. 30, 2017
Investment Management and Other Fees [Abstract]
Investment Management and Other Fees [Text Block]	NOTE 4. INVESTMENT MANAGEMENT AND OTHER FEES The Company generates a majority of all of its operating revenues from managing and servicing USGIF. 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, 2017, 2016, and 2015, the Company realized a decrease in its base advisory fee of $49,000; $132,000; and $1.0 million, respectively, due to these performance adjustments. The Company has agreed to contractually limit the expenses of the Near-Term Tax Free Fund through April 2018. The Company has voluntarily waived or reduced its fees and/or agreed to pay expenses on the remaining USGIF funds. These caps will continue on a voluntary basis at the Company’s discretion. The aggregate fees waived and expenses borne by the Company for USGIF were $1.0 million; $1.3 million; and $1.3 million for the years ended June 30, 2017, 2016, and 2015, respectively. Management cannot predict the impact of future waivers due to the number of variables and the range of potential outcomes. The Company receives administrative service fees from USGIF based on the average daily net assets at an annual rate of 0.05 percent per investor class and 0.04 percent per institutional class of each fund. Prior to November 2014, the Company was compensated for administrative services at an annual rate of 0.10 percent per investor class and 0.08 percent per institutional class plus $10,000 per fund. Effective November 1, 2014, the annual per fund fee changed to $7,000. Effective December 10, 2015, the agreement was amended and the level of administrative services performed and corresponding fees were reduced, including elimination of the per fund fee. As of June 30, 2017, the Company had $396,000 in receivables from fund clients, of which $287,000 was from USGIF. The Company also serves as investment advisor to U.S. Global ETFs. The U.S. Global Jets ETF commenced operations in April 2015, and fiscal 2016 was its first full year of operations. U.S. Global GO GOLD and Precious Metal Miners ETF commenced operations in June 2017. The Company receives a unitary management fee of 0.60 percent of average net assets and has agreed to bear all expenses of the ETFs. The Company recorded advisory fees from the ETFs totaling $357,000; $296,000; and $26,000 in fiscal 2017, 2016, and 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 $135,000; $91,000; and $130,000 for the years ended June 30, 2017, 2016, and 2015, respectively. The Company recorded no performance fees from these clients for fiscal years 2015 through 2017. The offshore clients have provided notice that they are liquidating. The liquidations are expected to be completed in September 2017. 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 $1.1 million; $1.2 million; and $2.0 million for the years ended June 30, 2017, 2016, and 2015, respectively.

NOTE 4. INVESTMENT MANAGEMENT AND OTHER FEES

The Company generates a majority of all of its operating revenues from managing and servicing USGIF. 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, 2017, 2016, and 2015, the Company realized a decrease in its base advisory fee of $49,000; $132,000; and $1.0 million, respectively, due to these performance adjustments.

The Company has agreed to contractually limit the expenses of the Near-Term Tax Free Fund through April 2018. The Company has voluntarily waived or reduced its fees and/or agreed to pay expenses on the remaining USGIF funds. These caps will continue on a voluntary basis at the Company’s discretion. The aggregate fees waived and expenses borne by the Company for USGIF were $1.0 million; $1.3 million; and $1.3 million for the years ended June 30, 2017, 2016, and 2015, respectively. Management cannot predict the impact of future waivers due to the number of variables and the range of potential outcomes.

The Company receives administrative service fees from USGIF based on the average daily net assets at an annual rate of 0.05 percent per investor class and 0.04 percent per institutional class of each fund. Prior to November 2014, the Company was compensated for administrative services at an annual rate of 0.10 percent per investor class and 0.08 percent per institutional class plus $10,000 per fund. Effective November 1, 2014, the annual per fund fee changed to $7,000. Effective December 10, 2015, the agreement was amended and the level of administrative services performed and corresponding fees were reduced, including elimination of the per fund fee.

As of June 30, 2017, the Company had $396,000 in receivables from fund clients, of which $287,000 was from USGIF.

The Company also serves as investment advisor to U.S. Global ETFs. The U.S. Global Jets ETF commenced operations in April 2015, and fiscal 2016 was its first full year of operations. U.S. Global GO GOLD and Precious Metal Miners ETF commenced operations in June 2017. The Company receives a unitary management fee of 0.60 percent of average net assets and has agreed to bear all expenses of the ETFs. The Company recorded advisory fees from the ETFs totaling $357,000; $296,000; and $26,000 in fiscal 2017, 2016, and 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 $135,000; $91,000; and $130,000 for the years ended June 30, 2017, 2016, and 2015, respectively. The Company recorded no performance fees from these clients for fiscal years 2015 through 2017. The offshore clients have provided notice that they are liquidating. The liquidations are expected to be completed in September 2017.

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 $1.1 million; $1.2 million; and $2.0 million for the years ended June 30, 2017, 2016, and 2015, respectively.