Note 13 - Subsequent Events	9 Months Ended
Mar. 31, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	*NOTE 13.* SUBSEQUENT EVENTS** In June 2023, the Board authorized the continuance of the monthly dividend of $0.0075 per share from July through September 2023, at which time it will be considered for continuation by the Board. Payment of cash dividends is within the discretion of the Company’s Board of Directors and is dependent on earnings, operations, capital requirements, general financial condition of the Company, and general business conditions. Additionally, the Company's credit agreement discussed in Note 6, Borrowings, expired on May 31, 2023; the Company intends to renew the agreement. Further, as discussed in Note 3, Investment Management and Other Fees, the Company has agreed to contractually limit the expenses of the U.S. Global Sea to Sky Cargo ETF, the Near-Term Tax Free Fund and the Global Luxury Goods Fund. These agreements have been extended through April 2024.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

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