U.S. Global Investors (GROW) 10-Q 14 Feb 18 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Dec. 31, 2017	Jan. 29, 2018
Document Information [Line Items]
Entity Registrant Name	U S GLOBAL INVESTORS INC
Document Type	10-Q
Current Fiscal Year End Date	--06-30
Amendment Flag	false
Entity Central Index Key	754,811
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		13,074,270
Common Class C [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		2,068,857
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Dec. 31, 2017	Jun. 30, 2017
Current Assets
Cash and cash equivalents		$ 2,977	$ 3,958
Restricted cash		1,000	1,000
Investment securities - trading, at fair value	[1]	7,433	9,720
Accounts and other receivables		1,177	520
Note receivable		1,977	1,952
Prepaid expenses		399	315
Total Current Assets		14,963	17,465
Net Property and Equipment		2,092	2,212
Other Assets
Investment securities - available-for-sale, at fair value		22,372	3,401
Other investments		2,109	2,130
Equity method investment		3,252	0
Note receivable, long term		234	234
Other assets, long term		53	78
Total Other Assets		28,020	5,843
Total Assets		45,075	25,520
Current Liabilities
Accounts payable		198	118
Accrued compensation and related costs		425	390
Dividends payable		114	114
Other accrued expenses		827	544
Total Current Liabilities		1,564	1,166
Long-Term Liabilities
Deferred tax liability		3,923	0
Total Long-Term Liabilities		3,923	0
Total Liabilities		5,487	1,166
Commitments and Contingencies (Note 18)
Shareholders’ Equity
Additional paid-in-capital		15,647	15,646
Treasury stock, class A shares at cost; 790,421 and 751,303 shares at December 31, 2017, and June 30, 2017, respectively		(1,876)	(1,760)
Accumulated other comprehensive gain (loss), net of tax		13,703	264
Retained earnings		11,112	9,321
Total U.S. Global Investors Inc. Shareholders’ Equity		38,985	23,870
Non-Controlling Interest in Subsidiary		603	484
Total Shareholders’ Equity		39,588	24,354
Total Liabilities and Shareholders’ Equity		45,075	25,520
Common Class A [Member]
Shareholders’ Equity
Common stock, value		347	347
Common Class B [Member]
Shareholders’ Equity
Common stock, value		0	0
Common Class C [Member]
Shareholders’ Equity
Common stock, value		$ 52	$ 52
[1]	Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares	Dec. 31, 2017	Jun. 30, 2017
Common Class A [Member]
Common stock; par value (in Dollars per share)	$ 0.025	$ 0.025
Common stock, shares authorized	28,000,000	28,000,000
Common stock, shares issued	13,866,691	13,866,601
Treasury stock, class A shares at cost; shares	790,421	751,303
Common Class B [Member]
Common stock; par value (in Dollars per share)	$ 0.025	$ 0.025
Common stock, shares authorized	4,500,000	4,500,000
Common stock, shares issued	0	0
Common Class C [Member]
Common stock; par value (in Dollars per share)	$ 0.025	$ 0.025
Common stock, shares authorized	3,500,000	3,500,000
Common stock, shares issued	2,068,857	2,068,947

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Operating Revenues
Advisory fees	$ 1,929	$ 1,569	$ 3,362	$ 3,460
Administrative services fees	64	73	121	163
	1,993	1,642	3,483	3,623
Operating Expenses
Employee compensation and benefits	1,140	899	2,041	1,886
General and administrative	914	863	1,862	1,733
Advertising	27	51	86	80
Depreciation and amortization	61	63	122	127
	2,142	1,876	4,111	3,826
Operating Loss	(149)	(234)	(628)	(203)
Other Income
Investment income	243	249	452	502
Income from equity method investment	1,218	0	2,731	0
Other income	14	0	17	0
	1,475	249	3,200	502
Income Before Income Taxes	1,326	15	2,572	299
Provision for Income Taxes
Tax expense (benefit)	442	(10)	452	10
Net Income	884	25	2,120	289
Less: Net Income Attributable to Non-Controlling Interest	135	17	101	18
Net Income Attributable to U.S. Global Investors, Inc.	$ 749	$ 8	$ 2,019	$ 271
Earnings Per Share Attributable to U.S. Global Investors, Inc.
Basic (in Dollars per share)	$ 0.05	$ 0	$ 0.13	$ 0.02
Diluted (in Dollars per share)	$ 0.05	$ 0	$ 0.13	$ 0.02
Basic weighted average number of common shares outstanding (in Shares)	15,160,589	15,218,734	15,171,620	15,229,845
Diluted weighted average number of common shares outstanding (in Shares)	15,160,589	15,218,734	15,171,620	15,229,845

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS ) (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Net Income Attributable to U.S. Global Investors, Inc.	$ 749	$ 8	$ 2,019	$ 271
Other Comprehensive Income (Loss), Net of Tax:
Unrealized gains (losses) on available-for-sale securities arising during period	4,277	(308)	13,417	369
Less: reclassification adjustment for gains/losses included in net income	(24)	(31)	(31)	(15)
Net change from available-for-sale investments, net of tax	4,253	(339)	13,386	354
Foreign currency translation adjustment	17	(39)	71	(54)
Other Comprehensive Income (Loss)	4,270	(378)	13,457	300
Comprehensive Income (Loss)	5,019	(370)	15,476	571
Less: Comprehensive Income (Loss) Attributable to Non-Controlling Interest	0	(14)	18	(19)
Comprehensive Income (Loss) Attributable to U.S. Global Investors, Inc.	$ 5,019	$ (356)	$ 15,458	$ 590

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash Flows from Operating Activities:
Net income	$ 2,120	$ 289
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	122	127
Net recognized (gain) loss on securities	675	(15)
Net income from equity method investment	(2,731)	0
Provision for deferred taxes	417	0
Stock bonuses	14	3
Changes in operating assets and liabilities:
Accounts and notes receivable	(678)	122
Prepaid and other assets	(58)	(109)
Trading securities	1,551	425
Accounts payable and accrued expenses	391	(124)
Total adjustments	(297)	429
Net cash provided by operating activities	1,823	718
Cash Flows from Investing Activities:
Purchase of equity method investment	(501)	0
Purchase of available-for-sale securities	(2,420)	(457)
Purchase of other investments	0	(776)
Proceeds on sale of available-for-sale securities	401	649
Return of capital on investment	22	29
Net cash used in investing activities	(2,498)	(555)
Cash Flows from Financing Activities:
Issuance of common stock	3	3
Repurchases of common stock	(131)	(80)
Dividends paid	(227)	(228)
Net cash used in financing activities	(355)	(305)
Effect of exchange rate changes on cash and cash equivalents	49	(50)
Net decrease in cash and cash equivalents	(981)	(192)
Beginning cash and cash equivalents	3,958	3,993
Ending cash and cash equivalents	2,977	3,801
Supplemental Disclosures of Cash Flow Information
Cash paid for income taxes	$ 0	$ 12

BASIS OF PRESENTATION

BASIS OF PRESENTATION	6 Months Ended
	Dec. 31, 2017
Disclosure Text Block [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	NOTE 1. BASIS OF PRESENTATION U.S. Global Investors, Inc. (the “Company” or “U.S. Global”) has prepared the consolidated financial statements pursuant to accounting principles generally accepted in the United States of America (“U.S. GAAP”) and the rules and regulations of the United States Securities and Exchange Commission (“SEC”) that permit reduced disclosure for interim periods. The financial information included herein reflects all adjustments (consisting solely of normal recurring adjustments), which are, in management’s opinion, necessary for a fair presentation of results for the interim periods presented. The Company has consistently followed the accounting policies set forth in the notes to the consolidated financial statements in the Company’s Form 10-K for the fiscal year ended June 30, 2017, except for the adoption of new accounting pronouncements discussed below. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, U.S. Global Brokerage, Inc., U.S. Global Investors (Bermuda) Limited, U.S. Global Investors (Canada) Limited (“USCAN”), and U.S. Global Indices, LLC, and its 65 percent interest in Galileo Global Equity Advisors Inc. (“Galileo”). U.S. Global Brokerage, Inc. ceased operations in December 2015. Galileo is consolidated with the operations of the Company. The non-controlling interest in this subsidiary is included in “Non-Controlling Interest in Subsidiary” in the equity section of the Consolidated Balance Sheets. Frank Holmes, CEO, and Susan McGee, President and General Counsel, serve as directors of Galileo. There are two primary consolidation models in U.S. GAAP, the variable interest entity (“VIE”) and voting interest entity models. The Company’s evaluation for consolidation includes whether entities in which it has an interest or from which it receives fees are VIEs and whether the Company is the primary beneficiary of any VIEs identified in its analysis. A VIE is an entity in which either (a) the equity investment at risk is not sufficient to permit the entity to finance its own activities without additional financial support or (b) the group of holders of the equity investment at risk lack certain characteristics of a controlling financial interest. The primary beneficiary is the entity that has the obligation to absorb a majority of the expected losses or the right to receive the majority of the residual returns and consolidates the VIE on the basis of having a controlling financial interest. The Company holds variable interests in, but is not deemed to be the primary beneficiary of, certain funds it advises, specifically, certain funds in U.S. Global Investors Funds (“USGIF” or the “Funds”) and one of the offshore funds. The Company’s interests in these VIEs consist of the Company’s direct ownership therein and any fees earned but uncollected. See further information about these funds in Notes 2 and 3. In the ordinary course of business, the Company may choose to waive certain fees or assume operating expenses of the funds it advises for competitive, regulatory or contractual reasons (see Note 3 for information regarding fee waivers). The Company has not provided financial support to any of these entities outside the ordinary course of business. The Company’s risk of loss with respect to these VIEs is limited to the carrying value of its investments in, and fees receivable from, the entities. The Company does not consolidate these VIEs because it is not the primary beneficiary. The Company’s total exposure to unconsolidated VIEs, consisting of the carrying value of investment securities and receivables for fees, was $8.9 million at December 31, 2017, and $11.3 million at June 30, 2017. The Company holds a variable interest in a fund advised by Galileo, but this fund does not qualify as a VIE. Since the fund is not a VIE, the Company evaluated if it should consolidate the fund under the voting interest entity model. Under the voting interest model, for legal entities other than partnerships, the usual condition for control is ownership, directly or indirectly, of more than 50 percent of the outstanding voting shares over an entity. The Company does not have control of the fund and, therefore, does not consolidate the fund. However, the Company owns approximately 30 percent of the fund, and is considered to have the ability to exercise significant influence. Thus, the investment is accounted for under the equity method of accounting. See further information about this investment in Note 2. All significant intercompany balances and transactions have been eliminated in consolidation. Certain amounts have been reclassified for comparative purposes. The results of operations for the six months ended December 31, 2017, are not necessarily indicative of the results to be expected for the entire year. The unaudited interim financial information in these condensed financial statements should be read in conjunction with the consolidated financial statements contained in the Company’s annual report. Recent Accounting Pronouncements Accounting Pronouncements Adopted During the Period In March 2016, the FASB issued Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers Principal versus Agent Considerations (Reporting Revenue Gross versus Net) Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing Narrow-Scope Improvements and Practical Expedients Technical Corrections and Improvements in Topic 606 Revenue from Contracts with Customers In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities In February 2016, the FASB issued ASU 2016-02, Leases In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash

INVESTMENTS

INVESTMENTS	6 Months Ended
	Dec. 31, 2017
Disclosure Text Block Supplement [Abstract]
Investments and Other Noncurrent Assets [Text Block]	NOTE 2. INVESTMENTS As of December 31, 2017, the Company held investments with a fair value of approximately $29.8 million and a cost basis of approximately $12.6 million. The fair value of these investments is approximately 66.1 percent of the Company’s total assets. In addition, the Company held other investments of $2.1 million accounted for under the cost method of accounting and an investment of approximately $3.3 million accounted for under the equity method of accounting. Investments in securities classified as trading are reflected as current assets on the Consolidated Balance Sheets at their fair value. Unrealized holding gains and losses on trading securities are included in earnings in the Consolidated Statements of Operations. Investments in securities classified as available-for-sale, which may not be readily marketable, are reflected as non-current assets on the Consolidated Balance Sheets at their fair value. Unrealized holding gains and losses on available-for-sale securities are excluded from earnings and reported in other comprehensive income as a separate component of shareholders’ equity until realized. Other investments consist of equity investments in entities over which the Company is unable to exercise significant influence and which do not have readily determinable fair values. These investments are accounted for under the cost method of accounting and evaluated periodically for impairment. The Company considers many factors in determining impairment, including the severity and duration of the decline in value below cost, the Company’s interest and ability to hold the security for a period of time sufficient for an anticipated recovery in value, and the financial condition and specific events related to the issuer. When an impairment of a security is determined to be other than temporary, the impairment is recognized as a loss in the Company’s earnings. Investments classified as equity method consist of investments in companies in which the Company is able to exercise significant influence but not control. Under the equity method of accounting, the investment is initially recorded at cost, then the Company’s proportional share of investee’s underlying net income or loss is recorded as a component of “other income” with a corresponding increase or decrease to the carrying value of the investment. Distributions received from the investee reduce the Company’s carrying value of the investment. These investments are evaluated for impairment if events or circumstances arise that indicate that the carrying amount of such assets may not be recoverable. The Company records security transactions on trade date. Realized gains (losses) from security transactions are calculated on the first-in/first-out cost basis, unless otherwise identifiable, and are recorded in earnings on the date of sale. The following details the components of the Company’s investments recorded at fair value as of December 31, 2017, and June 30, 2017. December 31, 2017 (dollars in thousands) Cost Gains (Losses) Fair Value Trading securities 1 Mutual funds - Fixed income $ 7,035 $ 26 $ - $ 7,061 Mutual funds - Domestic equity 535 - (163 ) 372 Other 45 - (45 ) - Offshore fund - - - - Total trading securities 7,615 26 (208 ) 7,433 Available-for-sale securities 2 Common stock - Domestic - - - - Common stock - International 2,554 16,704 - 19,258 Corporate debt 3 1,071 632 - 1,703 Mutual funds - Fixed income 1,000 - (5 ) 995 Mutual funds - Domestic equity 394 22 - 416 Other - - - - Total available-for-sale securities 4 5,019 17,358 (5 ) 22,372 Total securities at fair value $ 12,634 $ 17,384 $ (213 ) $ 29,805 June 30, 2017 (dollars in thousands) Cost Gains (Losses) Fair Value Trading securities 1 Mutual funds - Fixed income $ 8,884 $ 50 $ (7 ) $ 8,927 Mutual funds - Domestic equity 535 - (157 ) 378 Other 45 - (45 ) - Offshore fund 1,184 - (769 ) 415 Total trading securities 10,648 50 (978 ) 9,720 Available-for-sale securities 2 Common stock - Domestic 109 4 - 113 Common stock - International 191 12 - 203 Corporate debt 3 1,042 427 - 1,469 Mutual funds - Fixed income 1,148 1 (5 ) 1,144 Mutual funds - Domestic equity 394 12 - 406 Other 56 10 - 66 Total available-for-sale securities 4 2,940 466 (5 ) 3,401 Total securities at fair value $ 13,588 $ 516 $ (983 ) $ 13,121 1 Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations. 2 Unrealized gains and losses on available-for-sale securities are excluded from earnings and recorded in other comprehensive income as a separate component of shareholders’ equity until realized. 3 Corporate debt matures in 2024. 4 Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of December 31, 2017, are $17,353 and $13,847, respectively, and as of June 30, 2017, are $461 and $461, respectively. On December 31, 2017, the Company had $8.8 million at fair value invested in USGIF. These investments were included in the Consolidated Balance Sheets and the table above as “trading securities” and “available-for-sale securities.” Investment income can be volatile and varies depending on market fluctuations, the Company’s ability to participate in investment opportunities, and timing of transactions. The Company expects that gains and losses will continue to fluctuate in the future. Investment income (loss) from the Company’s investments includes: • realized gains and losses on sales of securities; • unrealized gains and losses on trading securities; • realized foreign currency gains and losses; • other-than-temporary impairments on available-for-sale securities; • other-than-temporary impairments on held-at-cost securities; and • dividend and interest income. The following summarizes investment income (loss) reflected in earnings for the periods discussed: Six Months Ended Three Months Ended (dollars in thousands) December 31, December 31, Investment Income 2017 2016 2017 2016 Realized gains on sales of available-for-sale securities $ 31 $ 31 $ 24 $ 31 Realized losses on sales of trading securities (736 ) - (82 ) - Unrealized gains (losses) on trading securities 746 (26 ) 60 (125 ) Realized foreign currency gains (losses) (19 ) (5 ) 3 (7 ) Other-than-temporary declines in available-for-sale securities - (16 ) - - Dividend and interest income 430 518 238 350 Total Investment Income $ 452 $ 502 $ 243 $ 249 Included in investment income were other-than temporary declines in value on available-for-sale securities of approximately $16,000 for the six months ended December 31, 2016. There were no impairment losses for the three and six months ended December 31, 2017, or the three months ended December 31, 2016. During the six months ended December 31, 2016, impairment losses resulted from fair values of securities being lower than book value, and two securities with a combined cost basis of $98,000 were written down to a combined fair value of $82,000. In making these determinations, the Company considered the length of time and extent to which the fair value has been less than cost basis, financial condition and prospects of the issuers and the Company’s ability to hold the investment until recovery. Unrealized Losses The following tables show the gross unrealized losses and fair values of available-for-sale investment securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position. December December 31, 2017 Less Than 12 Months 12 Months or Greater Total Gross Unrealized Gross Unrealized Gross Unrealized (dollars in thousands) Fair Value Losses Fair Value Losses Fair Value Losses Available-for-sale securities Common stock - Domestic $ - $ - $ - $ - $ - $ - Common stock - International - - - - - - Corporate debt - - - - - - Mutual funds - Fixed income 995 (5 ) - - 995 (5 ) Mutual funds - Domestic equity - - - - - - Other - - - - - - Total available-for-sale securities $ 995 $ (5 ) $ - $ - $ 995 $ (5 ) June 30, 2017 Less Than 12 Months 12 Months or Greater Total Gross Unrealized Gross Unrealized Gross Unrealized (dollars in thousands) Fair Value Losses Fair Value Losses Fair Value Losses Available-for-sale securities Common stock - Domestic $ - $ - $ - $ - $ - $ - Common stock - International - - - - - - Corporate debt - - - - - - Mutual funds - Fixed income - - 95 (5 ) 95 (5 ) Mutual funds - Domestic equity - - - - - - Other - - - - - - Total available-for-sale securities $ - $ - $ 95 $ (5 ) $ 95 $ (5 ) Fair Value Hierarchy ASC 820, Fair Value Measurement and Disclosures Financial instruments measured and reported at fair value are classified and disclosed in one of the following categories: Level 1 – Valuations based on quoted prices in active markets for identical assets or liabilities at the reporting date. Since valuations are based on quoted prices that are readily and regularly available in an active market, value of these products does not entail a significant degree of judgment. Level 2 – Valuations based on quoted prices in markets for which not all significant inputs are observable, directly or indirectly. Corporate debt securities valued in accordance with the evaluated price supplied by an independent service are categorized as Level 2 in the hierarchy. Other securities categorized as Level 2 include securities valued at the mean between the last reported bid and ask quotation and securities valued with an adjustment to the quoted price due to restrictions. Level 3 – Valuations based on inputs that are unobservable and significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the financial instrument. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with the investing in those securities. Because of the inherent uncertainties of valuation, the values reflected may materially differ from the values received upon actual sale of those investments. For actively traded securities, the Company values investments using the closing price of the securities on the exchange or market on which the securities principally trade. If the security is not traded on the last business day of the quarter, it is generally valued at the mean between the last bid and ask quotation. The fair value of a security that has a restriction is based on the quoted price for an otherwise identical unrestricted instrument that trades in a public market, adjusted for the estimated effect of the restriction. Mutual funds, which include open- and closed-end funds, exchange-traded funds, and offshore funds, are valued at net asset value or closing price, as applicable. Certain corporate debt securities not traded on an exchange may be valued by an independent pricing service using an evaluated quote based on such factors as institutional-size trading in similar groups of securities, yield, quality maturity, coupon rate, type of issuance and individual trading characteristics and other market data. As part of its independent price verification process, the Company periodically reviews the fair value provided by the pricing service using information such as transactions in these investments, broker quotes, market transactions in comparable investments, general market conditions and the issuer’s financial condition. Certain debt securities may be valued based on review of similarly structured issuances in similar jurisdictions, when possible, or based on other traded debt securities issued by the issuer. The Company also takes into consideration numerous other factors that could affect valuation such as overall market conditions, liquidity of the security and bond structure. Securities for which market quotations are not readily available are valued at their fair value as determined by the portfolio management team. The portfolio management team includes representatives from the investment, accounting and legal/compliance departments. The portfolio management team meets periodically to consider a number of factors in determining a security’s fair value, including the security’s trading volume, market values of similar class issuances, investment personnel’s judgment regarding the market experience of the issuer, financial status of the issuer, the issuer’s management, and back testing, as appropriate. The fair values may differ from what may have been used had a broader market for these securities existed. The portfolio management team reviews inputs and assumptions and reports material items to the board of directors. The following presents fair value measurements, as of December 31, 2017, and June 30, 2017, for the major categories of U.S. Global’s investments measured at fair value on a recurring basis: December 31, 2017 Quoted Prices Significant Other Inputs Significant Unobservable Inputs (dollars in thousands) (Level 1) (Level 2) (Level 3) Total Trading securities Mutual funds - Fixed income $ 7,061 $ - $ - $ 7,061 Mutual funds - Domestic equity 372 - - 372 Other - - - - Offshore fund investment measured at net asset value 1 - Total trading securities 7,433 - - 7,433 Available-for-sale securities Common stock - Domestic - - - - Common stock - International 158 19,100 - 19,258 Corporate debt - 1,703 - 1,703 Mutual funds - Fixed income 995 - - 995 Mutual funds - Domestic equity 416 - - 416 Other - - - - Total available-for-sale securities 1,569 20,803 - 22,372 Total securities at fair value $ 9,002 $ 20,803 $ - $ 29,805 June 30, 2017 Quoted Prices Significant Other Inputs Significant Unobservable Inputs (dollars in thousands) (Level 1) (Level 2) (Level 3) Total Trading securities Mutual funds - Fixed income $ 8,927 $ - $ - $ 8,927 Mutual funds - Domestic equity 378 - - 378 Other - - - - Offshore fund investment measured at net asset value 1 415 Total trading securities 9,305 - - 9,720 Available-for-sale securities Common stock - Domestic 113 - - 113 Common stock - International 203 - - 203 Corporate debt 1,469 - - 1,469 Mutual funds - Fixed income 1,144 - - 1,144 Mutual funds - Domestic equity 406 - - 406 Other 66 - - 66 Total available-for-sale securities 3,401 - - 3,401 Total securities at fair value $ 12,706 $ - $ - $ 13,121 1 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. As of December 31, 2017, approximately 30 percent of the Company’s financial assets measured at fair value were classified as Level 1 and 70 percent of the Company’s financial assets measured at fair value were classified as Level 2. As of June 30, 2017, 100 percent of the Company’s financial assets were classified in the fair value hierarchy as Level 1. The Company recognizes transfers between levels at the end of each quarter. During the quarter ended September 30, 2017, the Company invested in 10 million common shares of HIVE Blockchain Technologies Ltd. (“HIVE”), a company that is headquartered and traded in Canada with cryptocurrency mining facilities in Iceland and Sweden, at a cost of $2.4 million. The shares held by the Company are restricted for resale until mid-March 2018 and are also subject to Canadian insider regulations. The original restriction on the shares until January 2018 was extended to mid-March 2018 to facilitate additional share offerings by HIVE. The investment, classified as available-for-sale, was valued at approximately $19.1 million at December 31, 2017, based on the quoted market price adjusted for the restriction on resale and is classified as Level 2 in the fair value hierarchy. Cryptocurrency markets and related stocks have been, and are expected to continue to be, volatile. Cryptocurrency mining is considered an early stage high-risk industry, and the nature of mining is expected to evolve. There is potential for significant volatility in the market price of HIVE, which could materially impact the investment’s value included on the balance sheet and unrealized gain (loss) recognized in comprehensive income. A unit trust investment fund managed by Galileo, described below under Investment Classified as Equity Method, The Company has available-for-sale investments in corporate debt securities maturing in 2024 which were valued at $1.7 million as of December 31, 2017, based on the mean between the last reported bid/ask quotation and were classified as Level 2. As of June 30, 2017, these securities were valued at $1.5 million based on a quoted price on the reporting date and were classified as Level 1. The Company had an investment in an affiliated offshore fund, classified as trading, which invested in companies in the energy and natural resources sectors. The fair value of this investment was estimated based on the net asset value per share at $415,000 as of June 30, 2017. This offshore fund liquidated during the current fiscal year, with partial liquidation proceeds received in the quarter ended September 30, 2017, and final proceeds received during the quarter ended December 31, 2017. Investment Classified as Equity Method During the quarter ended September 30, 2017, the Company, through USCAN, invested approximately $500,000 in the Galileo Partners Fund, a Canadian unit trust investment fund managed by Galileo. This fund’s primary investment is in HIVE, the same company described above that the Company has also invested in directly; the fund held 6.5 million common shares of HIVE as of December 31, 2017. This concentration may result in volatility in the valuation of the Galileo Partners Fund. The Company owns approximately 30 percent of Galileo Partners Fund and is considered to have the ability to exercise significant influence. Thus, the investment is accounted for under the equity method of accounting. Under the equity method, the Company’s proportional share of the fund’s net income or loss, which primarily consists of realized and unrealized gains and losses on investments offset by fund expenses, is recognized in the Company’s earnings. Included in other income for the three and six months ending December 31, 2017, is $1.2 million and $2.7 million, respectively, of equity method income of Galileo Partners Fund. The Company’s investment in the fund was valued at approximately $3.3 million at December 31, 2017. Frank Holmes also directly held an investment in the fund as of December 31, 2017. Summarized income statement information on the Galileo Partners Fund since the Company’s investment is as follows: Galileo Partners Fund Summary Financial Information For the Period from August 31, 2017 (investment) to December 31, 2017 (dollars in thousands) Realized gains on sales of investments $ 1,921 Unrealized gains on investments 9,612 Fund fees and expenses, including performance fees (2,810 ) Net income of fund $ 8,723 Company's share of income from equity method investment $ 2,731 Subsequent to December 31, 2017, the Company redeemed a portion of its investment in the Galileo Partners Fund. See Note 12, Subsequent Event, for further information.

INVESTMENT MANAGEMENT AND OTHER

INVESTMENT MANAGEMENT AND OTHER FEES	6 Months Ended
	Dec. 31, 2017
Investment Management and Other Fees [Abstract]
Investment Management and Other Fees [Text Block]	NOTE 3. 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 Company recorded base advisory fees from USGIF totaling $1.2 million and $2.3 million, respectively, for the three and six months ended December 31, 2017, compared with $1.2 million and $2.6 million, respectively, for the corresponding periods in the prior fiscal year. 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 when 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 three and six months ended December 31, 2017, the Company realized a decrease in its base advisory fees from USGIF of $192,000 and $308,000, respectively. For the three and six months ended December 31, 2016, the Company realized a (decrease) increase in its base advisory fees from USGIF of ($9,000) and $30,000, respectively. 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 for the three and six months ended December 31, 2017, were $102,000 and $334,000, respectively, compared with $313,000 and $546,000, respectively, for the corresponding periods in the prior fiscal year. Management cannot predict the impact of future waivers due 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 0.05 percent per investor class and 0.04 percent per institutional class of each fund. The Company also serves as investment advisor to two exchange-traded funds (ETFs). The U.S. Global Jets ETF commenced operations in April 2015, and 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 ETF advisory fees totaling $184,000 and $369,000, respectively, for the three and six months ended December 31, 2017, compared with $76,000 and $142,000, respectively, for the corresponding periods in the prior fiscal year. The Company provided advisory services for offshore clients and receives advisory fees based on the net asset values of the clients and performance fees, if any, based on the overall increase in net asset values. The Company recorded advisory fees from these clients of $2,000 and $3,000, respectively, for the three and six months ended December 31, 2017, compared with $32,000 and $68,000, respectively, for the corresponding periods in the prior fiscal year. Frank Holmes, CEO, served as a director of the offshore clients. The offshore clients completed their respective liquidations in the second quarter of fiscal year 2018. 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 $287,000 and $505,000, respectively, for the three and six months ended December 31, 2017, compared with $303,000 and $603,000, respectively, for the corresponding periods in the prior fiscal year. Galileo may also receive performance fees from certain clients when market appreciation or realized net gains exceeds established benchmarks. Galileo recorded performance fees of $464,000 from these clients for three and six months ended December 31, 2017. The majority of the performance fees recorded in the current period are annual performance fees calculated at calendar year-end. Galileo recorded no performance fees for the three and six months ended December 31, 2016. Galileo may, at its discretion, waive and absorb some of its clients’ operating expenses. The amount of expenses waived and absorbed was $9,000 and $33,000 for the three and months ended December 31, 2017, and $9,000 and $21,000 for the three and months ended December 31, 2016, respectively. On September 29, 2017, Galileo launched its first ETF, U.S. Global GO GOLD and Precious Metal Miners ETF (ticker GOGO), on the Toronto Stock Exchange. As of December 31, 2017, the Company had just over $1.0 million in receivables from fund clients, of which $381,000 was from USGIF, $605,000 from Galileo clients and $63,000 from ETFs.

NOTES RECEIVABLE

NOTES RECEIVABLE	6 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Financing Receivables [Text Block]	NOTE 4. NOTES RECEIVABLE The Company has invested in notes receivable consisting of two promissory notes. One note with a principal amount of $2 million was entered into with an unrelated third party in June 2016 with a one-year maturity. As allowed by the agreement, in June 2017, the initial maturity was extended one-year to June 2018, and the Company received a $50,000 extension fee and all interest to date. The fee, which is included in Notes Receivable on the balance sheet, is amortized to interest income using the interest method over the remaining term of the note. The note bears interest at 12 percent, with 10 percent payable monthly and 2 percent payable at maturity. In case of prepayment, there would be a penalty for the amount of lost interest. The balance of this note was approximately $2.0 million at December 31, 2017, and June 30, 2017. The other note of $234,000 is with an unrelated third party, has an annual interest rate of 15 percent and matures in 2021. Interest is paid monthly. Principal repayments are scheduled to start in February 2019. The balance of this note was $234,000 at December 31, 2017, and June 30, 2017. The Company considered the credit quality of the other parties and determined that no allowance for credit losses is necessary.

BORROWINGS

BORROWINGS	6 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	NOTE 5. BORROWINGS As of December 31, 2017, the Company has no borrowings or long-term liabilities except for deferred taxes. The Company has access to a $1 million credit facility for working capital purposes. The credit agreement requires the Company to maintain certain covenants; the Company has been in compliance with these covenants during the current fiscal year. The credit agreement will expire on May 31, 2018, and the Company intends to renew annually. The credit facility is collateralized by $1 million at December 31, 2017, shown as restricted cash on the balance sheet, held in deposit in a money market account at the financial institution that provided the credit facility. As of December 31, 2017, the credit facility remains unutilized by the Company.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
	Dec. 31, 2017
Disclosure Text Block Supplement [Abstract]
Shareholders' Equity and Share-based Payments [Text Block]	NOTE 6. STOCKHOLDERS’ EQUITY 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. A monthly dividend of $0.0025 per share was paid for July through December 2017 and is authorized through March 2018, at which time it will be considered for continuation by the Board. The Board of Directors approved a share repurchase program on December 7, 2012, authorizing the Company to purchase up to $2.75 million of its outstanding common shares, as market and business conditions warrant, on the open market in compliance with Rule 10b-18 of the Securities Exchange Act of 1934 through December 31, 2013. In December 2013, December 2014, December 2015, December 2016, and December 2017, the Board of Directors renewed the repurchase program for calendar years 2014, 2015, 2016, 2017, and 2018, respectively. The total amount of shares that may be repurchased in calendar year 2018 under the renewed program is $2.75 million. The acquired shares may be used for corporate purposes, including shares issued to employees in the Company’s stock-based compensation programs. For the three and six months ended December 31, 2017, the Company repurchased 36,748 and 45,947 class A shares using cash of $117,000 and $131,000, respectively. For the three and six months ended December 31, 2016, the Company repurchased 32,605 and 47,552 class A shares using cash of $50,000 and $80,000, respectively. Stock compensation plans The Company’s stock option plans provide for the granting of class A shares as either incentive or nonqualified stock options to employees and non-employee directors. Options are subject to terms and conditions determined by the Compensation Committee of the Board of Directors. There were 2,000 options outstanding and exercisable at December 31, 2017, at a weighted average exercise price of $12.31. There were no options granted, exercised or forfeited for the six months ended December 31, 2017. The Company accounts for stock-based compensation in accordance with ASC 718 Compensation – Stock Compensation ASU 2016-09, which was issued in March 2016 and became effective for interim and annual reporting periods beginning after December 15, 2016, simplifies several aspects of accounting for employee share-based payment transactions. The Company adopted ASU 2016-09 on July 1, 2017, without a material impact to the consolidated financial statements.

EARNINGS PER SHARE

EARNINGS PER SHARE	6 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	NOTE 7. EARNINGS PER SHARE The basic earnings per share (“EPS”) calculation excludes dilution and is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution of EPS that could occur if options to issue common stock were exercised. The following table sets forth the computation for basic and diluted EPS: Six Months Ended December 31, Three Months Ended December 31, (dollars in thousands, except per share data) 2017 2016 2017 2016 Net Income $ 2,120 $ 289 $ 884 $ 25 Less: Net Income Attributable to Non-Controlling Interest 101 18 135 17 Net Income Attributable to U.S. Global Investors, Inc. $ 2,019 $ 271 $ 749 $ 8 Weighted average number of outstanding shares Basic 15,171,620 15,229,845 15,160,589 15,218,734 Effect of dilutive securities Employee stock options - - - - Diluted 15,171,620 15,229,845 15,160,589 15,218,734 Earnings Per Share Attributable to U.S. Global Investors, Inc. Basic $ 0.13 $ 0.02 $ 0.05 $ - Diluted $ 0.13 $ 0.02 $ 0.05 $ - The diluted EPS calculation excludes the effect of stock options when their exercise prices exceed the average market price for the period. For the three and six months ended December 31, 2017, and 2016, 2,000 options were excluded from diluted EPS. During the three and months ended December 31, 2017, and 2016, the Company repurchased class A shares on the open market. Upon repurchase, these shares are classified as treasury shares and are deducted from outstanding shares in the earnings per share calculation.

INCOME TAXES

INCOME TAXES	6 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	NOTE 8. INCOME TAXES The Company and its non-Canadian subsidiaries file a consolidated U.S. federal income tax return. USCAN and Galileo file separate tax returns in Canada. Provisions for income taxes include deferred taxes for temporary differences in the bases of assets and liabilities for financial and tax purposes, resulting from the use of the liability method of accounting for income taxes. The Tax Cuts and Jobs Act (“the Act”) was enacted on December 22, 2017. The Act reduces the U.S. federal corporate tax rate from 35 percent to 21 percent, requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred and creates new taxes on certain foreign sourced earnings. In the second quarter, the Company revised its estimated annual effective rate to reflect a change in its U.S. federal statutory rate from 34 percent to 21 percent. The rate change is effective on January 1, 2018; therefore, the Company’s blended U.S. statutory tax rate for the fiscal year ended June 30, 2018, is approximately 28 percent. At December 31, 2017, the Company has not completed its accounting for the tax effects of enactment of the Act; however, in certain cases, as described below, the Company has made a reasonable estimate of the effects on existing deferred tax balances and the one-time transition tax. In other cases, the Company has not been able to make a reasonable estimate and continues to account for those items based on existing accounting under ASC 740, Income Taxes, and the provisions of the tax laws that were in effect immediately prior to enactment. The Securities and Exchange Commission has issued guidance that allows for a measurement period of up to one year after the enactment date of the Act to finalize the recording of the related tax impacts. The final transitional impacts of the Act may differ from the initial estimates. Provisional amounts Deferred tax assets and liabilities: Certain domestic-related deferred tax assets and liabilities were remeasured based on the rates at which they are expected to reverse in the future, which is generally 21 percent. The remeasurement at the lower tax rate on domestic-related deferred tax assets and liabilities resulted in a deferred tax benefit of approximately $1.4 million. However, the Company is still analyzing certain aspects of the Act and refining the calculations, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. As a valuation allowance is recorded for the full amount of these deferred tax assets and liabilities, the remeasurement of the deferred tax assets and liabilities was offset by a corresponding remeasurement of the valuation allowance. Foreign tax effects: The one-time transition tax is based on total post-1986 earnings and profits (“E&P”) that were previously deferred from U.S. income taxes. The Company recorded a provisional amount for the one-time transition tax liability for foreign subsidiaries, resulting in an estimated increase in income tax expense of $17,000. The Company has not yet completed its calculation of the total post-1986 E&P for these foreign subsidiaries. Further, the transition tax is based in part on the amount of those earnings held in cash and other specified assets. This amount may change when the calculations are finalized. No additional income taxes have been provided for any remaining undistributed foreign earnings not subject to the transition tax, or any additional outside basis difference inherent in these entities, as these amounts continue to be indefinitely reinvested in foreign operations. For federal income tax purposes at December 31, 2017, the Company has charitable contribution carryovers totaling approximately $155,000, with $68,000 expiring in fiscal year 2018, $34,000 expiring in fiscal year 2019, $19,000 expiring in fiscal year 2020, $5,000 expiring in fiscal year 2021, $21,000 expiring in fiscal year 2022, and $8,000 expiring in fiscal year 2023. The Company has federal net operating loss carryovers of $4.9 million with $2.0 million expiring in fiscal year 2035, $2.7 million expiring in fiscal year 2036, and $161,000 expiring in fiscal year 2038. For Canadian income tax purposes, Galileo has net operating loss carryovers of $68,000 expiring in fiscal 2036. If certain changes in the Company’s ownership should occur, there could be an annual limitation on the amount of net operating loss carryovers that could be utilized. A valuation allowance is provided when it is more likely than not that some portion of the deferred tax amount will not be realized. At December 31, 2017, and June 30, 2017, a valuation allowance of $1.2 million and $3.3 million, respectively, was included net operating loss carryovers, other carryovers and certain book/tax differences in the balance sheet. Deferred taxes of $417,000 were recorded in the Statement of Operations in the current period for USCAN book/tax differences in the balance sheet.

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	6 Months Ended
	Dec. 31, 2017
Disclosure Text Block [Abstract]
Comprehensive Income (Loss) Note [Text Block]	NOTE 9. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following table presents change in accumulated other comprehensive income (loss) (“AOCI”) by component: (dollars in thousands) Unrealized gains (losses) on available-for-sale investments 1 Foreign currency adjustment Total Six months ended December 31, 2017 Balance at June 30, 2017 $ 461 $ (197 ) $ 264 Other comprehensive income before reclassifications 16,923 53 16,976 Tax effect (3,506 ) - (3,506 ) Amount reclassified from AOCI (31 ) - (31 ) Tax effect - - - Net other comprehensive income for six months ended December 31, 2017 13,386 53 13,439 Balance at December 31, 2017 $ 13,847 $ (144 ) $ 13,703 Three Months Ended December 31, 2017 Balance at September 30, 2017 $ 9,594 $ (161 ) $ 9,433 Other comprehensive income before reclassifications 7,783 17 7,800 Tax effect (3,506 ) - (3,506 ) Amount reclassified from AOCI (24 ) - (24 ) Tax effect - - - Net other comprehensive income for quarter 4,253 17 4,270 Balance at December 31, 2017 $ 13,847 $ (144 ) $ 13,703 (dollars in thousands) Unrealized gains (losses) on available-for-sale investments 1 Foreign currency adjustment Total Six months ended December 31, 2016 Balance at June 30, 2016 $ 45 $ (194 ) $ (149 ) Other comprehensive income (loss) before reclassifications 369 (35 ) 334 Tax effect - - - Amount reclassified from AOCI (15 ) - (15 ) Tax effect - - - Net other comprehensive income (loss) for six months ended December 31, 2016 354 (35 ) 319 Balance at December 31, 2016 $ 399 $ (229 ) $ 170 Three Months Ended December 31, 2016 Balance at September 30, 2016 $ 738 $ (204 ) $ 534 Other comprehensive income (loss) before reclassifications (308 ) (25 ) (333 ) Tax effect - - - Amount reclassified from AOCI (31 ) - (31 ) Tax effect - - - Net other comprehensive income (loss) for quarter (339 ) (25 ) (364 ) Balance at December 31, 2016 $ 399 $ (229 ) $ 170 1. Amounts reclassified from unrealized gains (losses) on available-for-sale investments, net of tax, were recorded in investment income (loss) on the Consolidated Statements of Operations.

FINANCIAL INFORMATION BY BUSINE

FINANCIAL INFORMATION BY BUSINESS SEGMENT	6 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Segment Reporting Disclosure [Text Block]	NOTE 10. FINANCIAL INFORMATION BY BUSINESS SEGMENT The Company operates principally in three business segments: providing investment management services to USGIF, offshore clients and ETF clients; investment management services in Canada; and investing for its own account in an effort to add growth and value to its cash position. The following schedule details total revenues and income by business segment: (dollars in thousands) Investment Management Services Investment Management Services - Canada Corporate Investments Consolidated Six months ended December 31, 2017 Net operating revenues $ 2,514 $ 969 $ - $ 3,483 Net other income $ 7 $ 10 $ 3,183 $ 3,200 Income (loss) before income taxes $ (915 ) $ 305 $ 3,182 $ 2,572 Depreciation and amortization $ 116 $ 6 $ - $ 122 Capital expenditures $ - $ - $ - $ - Gross identifiable assets at December 31, 2017 $ 8,702 $ 2,137 $ 34,236 $ 45,075 Deferred tax asset $ - Consolidated total assets at December 31, 2017 $ 45,075 Six months ended December 31, 2016 Net operating revenues $ 3,020 $ 603 $ - $ 3,623 Net other income $ - $ - $ 502 $ 502 Income (loss) before income taxes $ (223 ) $ 30 $ 492 $ 299 Depreciation and amortization $ 119 $ 8 $ - $ 127 Capital expenditures $ - $ - $ - $ - Three months ended December 31, 2017 Net operating revenues $ 1,242 $ 751 $ - $ 1,993 Net other income $ 5 $ 10 $ 1,460 $ 1,475 Income (loss) before income taxes $ (515 ) $ 381 $ 1,460 $ 1,326 Depreciation and amortization $ 58 $ 3 $ - $ 61 Capital expenditures $ - $ - $ - $ - Three months ended December 31, 2016 Net operating revenues $ 1,339 $ 303 $ - $ 1,642 Net other income $ - $ - $ 249 $ 249 Income (loss) before income taxes $ (275 ) $ 33 $ 257 $ 15 Depreciation and amortization $ 59 $ 4 $ - $ 63 Capital expenditures $ - $ - $ - $ - Net operating revenues from investment management services includes operating revenues from USGIF of $1.0 million and $2.1 million, respectively, for the three and six months ended December 31, 2017, and $1.2 million and $2.8 million, respectively, for the three and six months ended December 31, 2016. Net operating revenues from investment management services also include operating revenues from ETF clients of $184,000 and $369,000, respectively, for the three and six months ended December 31, 2017, and $76,000 and $142,000, respectively, for the three and six months ended December 31, 2016. Net operating revenues from investment management services in Canada includes revenues from Galileo funds of $747,000 and $961,000, respectively, for the three and six months ended December 31, 2017, and $223,000 and $448,000, respectively, for the three and six months ended December 31, 2016, and from other significant advisory clients of $78,000 and $148,000, respectively, for the three and six months ended December 31, 2016.

CONTINGENCIES AND COMMITMENTS

CONTINGENCIES AND COMMITMENTS	6 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	NOTE 11. CONTINGENCIES AND COMMITMENTS The Company continuously reviews all investor, employee and vendor complaints, and pending or threatened litigation. The likelihood that a loss contingency exists is evaluated through consultation with legal counsel, and a loss contingency is recorded if probable and reasonably estimable. During the normal course of business, the Company may be subject to claims, legal proceedings, and other contingencies. These matters are subject to various uncertainties, and it is possible that some of these matters may be resolved unfavorably. The Company establishes accruals for matters for which the outcome is probable and can be reasonably estimated. Management believes that any liability in excess of these accruals upon the ultimate resolution of these matters will not have a material adverse effect on the consolidated financial statements of the Company. The Board has authorized a monthly dividend of $0.0025 per share through March 2018, 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. The total amount of cash dividends expected to be paid to class A and class C shareholders from January to March 2018 is approximately $114,000.

SUBSEQUENT EVENT

SUBSEQUENT EVENT	6 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events [Text Block]	NOTE 12. SUBSEQUENT EVENT As discussed in Note 2, the Company owned approximately 30 percent of Galileo Partners Fund at December 31, 2017. This investment is accounted for under the equity method of accounting. Effective January 31, 2018, a portion of the investment in the fund was redeemed (sold) for proceeds of approximately $1.5 million. As the Company had recorded its proportional shares of the fund’s net income under the equity method of accounting, the proceeds will reduce the carrying value of the investment. After this transaction, the Company owns approximately 24 percent of the fund. As the Company will continue to have the ability to exercise significant influence, the investment will continue to be accounted for under the equity method of accounting. The results of this transaction will be reflected in the financial statements for the quarter ended March 31, 2018.

Accounting Policies, by Policy

Accounting Policies, by Policy (Policies)	6 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	U.S. Global Investors, Inc. (the “Company” or “U.S. Global”) has prepared the consolidated financial statements pursuant to accounting principles generally accepted in the United States of America (“U.S. GAAP”) and the rules and regulations of the United States Securities and Exchange Commission (“SEC”) that permit reduced disclosure for interim periods. The financial information included herein reflects all adjustments (consisting solely of normal recurring adjustments), which are, in management’s opinion, necessary for a fair presentation of results for the interim periods presented. The Company has consistently followed the accounting policies set forth in the notes to the consolidated financial statements in the Company’s Form 10-K for the fiscal year ended June 30, 2017, except for the adoption of new accounting pronouncements discussed below. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, U.S. Global Brokerage, Inc., U.S. Global Investors (Bermuda) Limited, U.S. Global Investors (Canada) Limited (“USCAN”), and U.S. Global Indices, LLC, and its 65 percent interest in Galileo Global Equity Advisors Inc. (“Galileo”). U.S. Global Brokerage, Inc. ceased operations in December 2015. Galileo is consolidated with the operations of the Company. The non-controlling interest in this subsidiary is included in “Non-Controlling Interest in Subsidiary” in the equity section of the Consolidated Balance Sheets. Frank Holmes, CEO, and Susan McGee, President and General Counsel, serve as directors of Galileo. There are two primary consolidation models in U.S. GAAP, the variable interest entity (“VIE”) and voting interest entity models. The Company’s evaluation for consolidation includes whether entities in which it has an interest or from which it receives fees are VIEs and whether the Company is the primary beneficiary of any VIEs identified in its analysis. A VIE is an entity in which either (a) the equity investment at risk is not sufficient to permit the entity to finance its own activities without additional financial support or (b) the group of holders of the equity investment at risk lack certain characteristics of a controlling financial interest. The primary beneficiary is the entity that has the obligation to absorb a majority of the expected losses or the right to receive the majority of the residual returns and consolidates the VIE on the basis of having a controlling financial interest. The Company holds variable interests in, but is not deemed to be the primary beneficiary of, certain funds it advises, specifically, certain funds in U.S. Global Investors Funds (“USGIF” or the “Funds”) and one of the offshore funds. The Company’s interests in these VIEs consist of the Company’s direct ownership therein and any fees earned but uncollected. See further information about these funds in Notes 2 and 3. In the ordinary course of business, the Company may choose to waive certain fees or assume operating expenses of the funds it advises for competitive, regulatory or contractual reasons (see Note 3 for information regarding fee waivers). The Company has not provided financial support to any of these entities outside the ordinary course of business. The Company’s risk of loss with respect to these VIEs is limited to the carrying value of its investments in, and fees receivable from, the entities. The Company does not consolidate these VIEs because it is not the primary beneficiary. The Company’s total exposure to unconsolidated VIEs, consisting of the carrying value of investment securities and receivables for fees, was $8.9 million at December 31, 2017, and $11.3 million at June 30, 2017. The Company holds a variable interest in a fund advised by Galileo, but this fund does not qualify as a VIE. Since the fund is not a VIE, the Company evaluated if it should consolidate the fund under the voting interest entity model. Under the voting interest model, for legal entities other than partnerships, the usual condition for control is ownership, directly or indirectly, of more than 50 percent of the outstanding voting shares over an entity. The Company does not have control of the fund and, therefore, does not consolidate the fund. However, the Company owns approximately 30 percent of the fund, and is considered to have the ability to exercise significant influence. Thus, the investment is accounted for under the equity method of accounting. See further information about this investment in Note 2. All significant intercompany balances and transactions have been eliminated in consolidation. Certain amounts have been reclassified for comparative purposes. The results of operations for the six months ended December 31, 2017, are not necessarily indicative of the results to be expected for the entire year. The unaudited interim financial information in these condensed financial statements should be read in conjunction with the consolidated financial statements contained in the Company’s annual report.
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements Accounting Pronouncements Adopted During the Period In March 2016, the FASB issued Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers Principal versus Agent Considerations (Reporting Revenue Gross versus Net) Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing Narrow-Scope Improvements and Practical Expedients Technical Corrections and Improvements in Topic 606 Revenue from Contracts with Customers In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities In February 2016, the FASB issued ASU 2016-02, Leases In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash

INVESTMENTS (Tables)

INVESTMENTS (Tables)	6 Months Ended
	Dec. 31, 2017
Disclosure Text Block Supplement [Abstract]
Unrealized Gain (Loss) on Investments [Table Text Block]	The following details the components of the Company’s investments recorded at fair value as of December 31, 2017, and June 30, 2017. December 31, 2017 (dollars in thousands) Cost Gains (Losses) Fair Value Trading securities 1 Mutual funds - Fixed income $ 7,035 $ 26 $ - $ 7,061 Mutual funds - Domestic equity 535 - (163 ) 372 Other 45 - (45 ) - Offshore fund - - - - Total trading securities 7,615 26 (208 ) 7,433 Available-for-sale securities 2 Common stock - Domestic - - - - Common stock - International 2,554 16,704 - 19,258 Corporate debt 3 1,071 632 - 1,703 Mutual funds - Fixed income 1,000 - (5 ) 995 Mutual funds - Domestic equity 394 22 - 416 Other - - - - Total available-for-sale securities 4 5,019 17,358 (5 ) 22,372 Total securities at fair value $ 12,634 $ 17,384 $ (213 ) $ 29,805 June 30, 2017 (dollars in thousands) Cost Gains (Losses) Fair Value Trading securities 1 Mutual funds - Fixed income $ 8,884 $ 50 $ (7 ) $ 8,927 Mutual funds - Domestic equity 535 - (157 ) 378 Other 45 - (45 ) - Offshore fund 1,184 - (769 ) 415 Total trading securities 10,648 50 (978 ) 9,720 Available-for-sale securities 2 Common stock - Domestic 109 4 - 113 Common stock - International 191 12 - 203 Corporate debt 3 1,042 427 - 1,469 Mutual funds - Fixed income 1,148 1 (5 ) 1,144 Mutual funds - Domestic equity 394 12 - 406 Other 56 10 - 66 Total available-for-sale securities 4 2,940 466 (5 ) 3,401 Total securities at fair value $ 13,588 $ 516 $ (983 ) $ 13,121 1 Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations. 2 Unrealized gains and losses on available-for-sale securities are excluded from earnings and recorded in other comprehensive income as a separate component of shareholders’ equity until realized. 3 Corporate debt matures in 2024. 4 Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of December 31, 2017, are $17,353 and $13,847, respectively, and as of June 30, 2017, are $461 and $461, respectively.
Gain (Loss) on Investments [Table Text Block]	The following summarizes investment income (loss) reflected in earnings for the periods discussed: Six Months Ended Three Months Ended (dollars in thousands) December 31, December 31, Investment Income 2017 2016 2017 2016 Realized gains on sales of available-for-sale securities $ 31 $ 31 $ 24 $ 31 Realized losses on sales of trading securities (736 ) - (82 ) - Unrealized gains (losses) on trading securities 746 (26 ) 60 (125 ) Realized foreign currency gains (losses) (19 ) (5 ) 3 (7 ) Other-than-temporary declines in available-for-sale securities - (16 ) - - Dividend and interest income 430 518 238 350 Total Investment Income $ 452 $ 502 $ 243 $ 249
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]	The following tables show the gross unrealized losses and fair values of available-for-sale investment securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position. The Company reviewed the gross unrealized losses shown as of December 31, 2017, and determined that the losses were not other-than-temporary based on consideration of the nature of the investment and the cause, severity and duration of the loss. December 31, 2017 Less Than 12 Months 12 Months or Greater Total Gross Unrealized Gross Unrealized Gross Unrealized (dollars in thousands) Fair Value Losses Fair Value Losses Fair Value Losses Available-for-sale securities Common stock - Domestic $ - $ - $ - $ - $ - $ - Common stock - International - - - - - - Corporate debt - - - - - - Mutual funds - Fixed income 995 (5 ) - - 995 (5 ) Mutual funds - Domestic equity - - - - - - Other - - - - - - Total available-for-sale securities $ 995 $ (5 ) $ - $ - $ 995 $ (5 ) June 30, 2017 Less Than 12 Months 12 Months or Greater Total Gross Unrealized Gross Unrealized Gross Unrealized (dollars in thousands) Fair Value Losses Fair Value Losses Fair Value Losses Available-for-sale securities Common stock - Domestic $ - $ - $ - $ - $ - $ - Common stock - International - - - - - - Corporate debt - - - - - - Mutual funds - Fixed income - - 95 (5 ) 95 (5 ) Mutual funds - Domestic equity - - - - - - Other - - - - - - Total available-for-sale securities $ - $ - $ 95 $ (5 ) $ 95 $ (5 )
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	The following presents fair value measurements, as of December 31, 2017, and June 30, 2017, for the major categories of U.S. Global’s investments measured at fair value on a recurring basis: December 31, 2017 Quoted Prices Significant Other Inputs Significant Unobservable Inputs (dollars in thousands) (Level 1) (Level 2) (Level 3) Total Trading securities Mutual funds - Fixed income $ 7,061 $ - $ - $ 7,061 Mutual funds - Domestic equity 372 - - 372 Other - - - - Offshore fund investment measured at net asset value 1 - Total trading securities 7,433 - - 7,433 Available-for-sale securities Common stock - Domestic - - - - Common stock - International 158 19,100 - 19,258 Corporate debt - 1,703 - 1,703 Mutual funds - Fixed income 995 - - 995 Mutual funds - Domestic equity 416 - - 416 Other - - - - Total available-for-sale securities 1,569 20,803 - 22,372 Total securities at fair value $ 9,002 $ 20,803 $ - $ 29,805 June 30, 2017 Quoted Prices Significant Other Inputs Significant Unobservable Inputs (dollars in thousands) (Level 1) (Level 2) (Level 3) Total Trading securities Mutual funds - Fixed income $ 8,927 $ - $ - $ 8,927 Mutual funds - Domestic equity 378 - - 378 Other - - - - Offshore fund investment measured at net asset value 1 415 Total trading securities 9,305 - - 9,720 Available-for-sale securities Common stock - Domestic 113 - - 113 Common stock - International 203 - - 203 Corporate debt 1,469 - - 1,469 Mutual funds - Fixed income 1,144 - - 1,144 Mutual funds - Domestic equity 406 - - 406 Other 66 - - 66 Total available-for-sale securities 3,401 - - 3,401 Total securities at fair value $ 12,706 $ - $ - $ 13,121 1 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.
Equity Method Investments [Table Text Block]	Summarized income statement information on the Galileo Partners Fund since the Company’s investment is as follows: Galileo Partners Fund Summary Financial Information For the Period from August 31, 2017 (investment) to December 31, 2017 (dollars in thousands) Realized gains on sales of investments $ 1,921 Unrealized gains on investments 9,612 Fund fees and expenses, including performance fees (2,810 ) Net income of fund $ 8,723 Company's share of income from equity method investment $ 2,731

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	6 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The following table sets forth the computation for basic and diluted EPS: Six Months Ended December 31, Three Months Ended December 31, (dollars in thousands, except per share data) 2017 2016 2017 2016 Net Income $ 2,120 $ 289 $ 884 $ 25 Less: Net Income Attributable to Non-Controlling Interest 101 18 135 17 Net Income Attributable to U.S. Global Investors, Inc. $ 2,019 $ 271 $ 749 $ 8 Weighted average number of outstanding shares Basic 15,171,620 15,229,845 15,160,589 15,218,734 Effect of dilutive securities Employee stock options - - - - Diluted 15,171,620 15,229,845 15,160,589 15,218,734 Earnings Per Share Attributable to U.S. Global Investors, Inc. Basic $ 0.13 $ 0.02 $ 0.05 $ - Diluted $ 0.13 $ 0.02 $ 0.05 $ -

ACCUMULATED OTHER COMPREHENSI22

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	6 Months Ended
	Dec. 31, 2017
Disclosure Text Block [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The following table presents change in accumulated other comprehensive income (loss) (“AOCI”) by component: (dollars in thousands) Unrealized gains (losses) on available-for-sale investments 1 Foreign currency adjustment Total Six months ended December 31, 2017 Balance at June 30, 2017 $ 461 $ (197 ) $ 264 Other comprehensive income before reclassifications 16,923 53 16,976 Tax effect (3,506 ) - (3,506 ) Amount reclassified from AOCI (31 ) - (31 ) Tax effect - - - Net other comprehensive income for six months ended December 31, 2017 13,386 53 13,439 Balance at December 31, 2017 $ 13,847 $ (144 ) $ 13,703 Three Months Ended December 31, 2017 Balance at September 30, 2017 $ 9,594 $ (161 ) $ 9,433 Other comprehensive income before reclassifications 7,783 17 7,800 Tax effect (3,506 ) - (3,506 ) Amount reclassified from AOCI (24 ) - (24 ) Tax effect - - - Net other comprehensive income for quarter 4,253 17 4,270 Balance at December 31, 2017 $ 13,847 $ (144 ) $ 13,703 (dollars in thousands) Unrealized gains (losses) on available-for-sale investments 1 Foreign currency adjustment Total Six months ended December 31, 2016 Balance at June 30, 2016 $ 45 $ (194 ) $ (149 ) Other comprehensive income (loss) before reclassifications 369 (35 ) 334 Tax effect - - - Amount reclassified from AOCI (15 ) - (15 ) Tax effect - - - Net other comprehensive income (loss) for six months ended December 31, 2016 354 (35 ) 319 Balance at December 31, 2016 $ 399 $ (229 ) $ 170 Three Months Ended December 31, 2016 Balance at September 30, 2016 $ 738 $ (204 ) $ 534 Other comprehensive income (loss) before reclassifications (308 ) (25 ) (333 ) Tax effect - - - Amount reclassified from AOCI (31 ) - (31 ) Tax effect - - - Net other comprehensive income (loss) for quarter (339 ) (25 ) (364 ) Balance at December 31, 2016 $ 399 $ (229 ) $ 170 1. Amounts reclassified from unrealized gains (losses) on available-for-sale investments, net of tax, were recorded in investment income (loss) on the Consolidated Statements of Operations.

FINANCIAL INFORMATION BY BUSI23

FINANCIAL INFORMATION BY BUSINESS SEGMENT (Tables)	6 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	The Company operates principally in three business segments: providing investment management services to USGIF, offshore clients and ETF clients; investment management services in Canada; and investing for its own account in an effort to add growth and value to its cash position. The following schedule details total revenues and income by business segment: (dollars in thousands) Investment Management Services Investment Management Services - Canada Corporate Investments Consolidated Six months ended December 31, 2017 Net operating revenues $ 2,514 $ 969 $ - $ 3,483 Net other income $ 7 $ 10 $ 3,183 $ 3,200 Income (loss) before income taxes $ (915 ) $ 305 $ 3,182 $ 2,572 Depreciation and amortization $ 116 $ 6 $ - $ 122 Capital expenditures $ - $ - $ - $ - Gross identifiable assets at December 31, 2017 $ 8,702 $ 2,137 $ 34,236 $ 45,075 Deferred tax asset $ - Consolidated total assets at December 31, 2017 $ 45,075 Six months ended December 31, 2016 Net operating revenues $ 3,020 $ 603 $ - $ 3,623 Net other income $ - $ - $ 502 $ 502 Income (loss) before income taxes $ (223 ) $ 30 $ 492 $ 299 Depreciation and amortization $ 119 $ 8 $ - $ 127 Capital expenditures $ - $ - $ - $ - Three months ended December 31, 2017 Net operating revenues $ 1,242 $ 751 $ - $ 1,993 Net other income $ 5 $ 10 $ 1,460 $ 1,475 Income (loss) before income taxes $ (515 ) $ 381 $ 1,460 $ 1,326 Depreciation and amortization $ 58 $ 3 $ - $ 61 Capital expenditures $ - $ - $ - $ - Three months ended December 31, 2016 Net operating revenues $ 1,339 $ 303 $ - $ 1,642 Net other income $ - $ - $ 249 $ 249 Income (loss) before income taxes $ (275 ) $ 33 $ 257 $ 15 Depreciation and amortization $ 59 $ 4 $ - $ 63 Capital expenditures $ - $ - $ - $ -

BASIS OF PRESENTATION (Details)

BASIS OF PRESENTATION (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2017	Jun. 30, 2017
BASIS OF PRESENTATION (Details) [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net	$ 8.9	$ 11.3
Galileo [Member]
BASIS OF PRESENTATION (Details) [Line Items]
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	65.00%

INVESTMENTS (Details)

INVESTMENTS (Details) $ in Thousands, shares in Millions		3 Months Ended		6 Months Ended
		Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)	Jun. 30, 2017USD ($)
INVESTMENTS (Details) [Line Items]
Fair value of investments held		$ 29,805		$ 29,805		$ 13,121
Cost basis of investments held		$ 12,634		$ 12,634		13,588
Market value of investments to Company's total assets		66.10%		66.10%
Other investments		$ 2,109		$ 2,109		2,130
Equity Method Investments		3,252		3,252		0
Available-for-sale, net unrealized gain (loss), gross		17,353		17,353		461
Available-for-sale, net unrealized gain (loss), net of tax		13,847		13,847		461
Other-than-temporary impairments		0	$ 0	0	$ 16
Available-for-sale securities, fair value	[1],[2]	22,372		22,372		3,401
Trading Securities	[2]	7,433		7,433		9,720
Income (Loss) from Equity Method Investments		1,218	$ 0	2,731	$ 0
Fair Value, Inputs, Level 1 [Member]
INVESTMENTS (Details) [Line Items]
Fair value of investments held		$ 9,002		$ 9,002		$ 12,706
Percentage of Financial Assets Derived From Level 1 Inputs Measured at Fair Value		30.00%		30.00%		100.00%
Available-for-sale securities, fair value		$ 1,569		$ 1,569		$ 3,401
Trading Securities		7,433		7,433		9,305
Fair Value, Inputs, Level 2 [Member]
INVESTMENTS (Details) [Line Items]
Fair value of investments held		$ 20,803		$ 20,803		0
Percentage of Financial Assets Derived From Level 2 Inputs Measured at Fair Value		70.00%		70.00%
Available-for-sale securities, fair value		$ 20,803		$ 20,803		0
Trading Securities		0		0		0
U.S. Global Investors Funds [Member]
INVESTMENTS (Details) [Line Items]
Investments, Fair Value Disclosure		$ 8,800		$ 8,800
HIVE Blockchain Technologies Ltd. ("HIVE") [Member]
INVESTMENTS (Details) [Line Items]
Investment Owned, Direct, Percentage		3.30%		3.30%
Investment Owned, Percentage		4.00%		4.00%
HIVE Blockchain Technologies Ltd. ("HIVE") [Member] | Fair Value, Inputs, Level 2 [Member]
INVESTMENTS (Details) [Line Items]
Available-for-sale securities, fair value		$ 19,100		$ 19,100
Offshore Fund [Member] | Net Asset Value Per Share [Member]
INVESTMENTS (Details) [Line Items]
Trading Securities						415
Galileo Partners Fund [Member]
INVESTMENTS (Details) [Line Items]
Equity Method Investments		3,300		3,300
Equity Method Investment, Aggregate Cost		$ 500		$ 500
Equity Method Investment, Ownership Percentage		30.00%		30.00%
Income (Loss) from Equity Method Investments		$ 1,200		$ 2,700
Corporate Debt Securities [Member]
INVESTMENTS (Details) [Line Items]
Available-for-sale securities, fair value	[2],[3]	1,703		1,703		1,469
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
INVESTMENTS (Details) [Line Items]
Available-for-sale securities, fair value		0		0		1,469
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
INVESTMENTS (Details) [Line Items]
Available-for-sale securities, fair value		$ 1,703		$ 1,703		$ 0
Impaired Securities [Member]
INVESTMENTS (Details) [Line Items]
Number of positions, subject to impairment loss					2
Available-for-Sale Securities, Combined Cost Basis of Impaired Securities					$ 98
Available-for-Sale Securities, Combined Fair Value of Impaired Securities					$ 82
HIVE Blockchain Technologies Ltd. ("HIVE") [Member]
INVESTMENTS (Details) [Line Items]
Investment Owned, Balance, Shares (in Shares) | shares		10		10
Investment Owned, at Cost		$ 2,400		$ 2,400
HIVE Blockchain Technologies Ltd. ("HIVE") [Member] | Galileo Partners Fund [Member]
INVESTMENTS (Details) [Line Items]
Investment Owned, Balance, Shares (in Shares) | shares		6.5		6.5
[1]	Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of December 31, 2017, are $17,353 and $13,847, respectively, and as of June 30, 2017, are $461 and $461, respectively.
[2]	Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.
[3]	Corporate debt matures in 2024.

INVESTMENTS (Details) - Compone

INVESTMENTS (Details) - Components of Company's Trading and Available-for-Sale Investments - USD ($) $ in Thousands		Dec. 31, 2017	Jun. 30, 2017
Trading securities1
Trading, cost	[1]	$ 7,615	$ 10,648
Trading, gross unrealized gain	[1]	26	50
Trading, gross unrealized (losses)	[1]	(208)	(978)
Trading, fair value	[1]	7,433	9,720
Available-for-sale securities2
Available-for-sale, cost	[1],[2]	5,019	2,940
Available-for-sale, gross unrealized gain	[1],[2]	17,358	466
Available-for-sale, gross unrealized (losses)	[1],[2]	(5)	(5)
Available-for-sale, fair value	[1],[2]	22,372	3,401
Total securities at fair value, cost		12,634	13,588
Total securities at fair value, gross unrealized gain		17,384	516
Total securities at fair value, gross unrealized (losses)		(213)	(983)
Total securities at fair value, fair value		29,805	13,121
Fixed Income Securities [Member]
Trading securities1
Trading, cost	[1]	7,035	8,884
Trading, gross unrealized gain	[1]	26	50
Trading, gross unrealized (losses)	[1]	0	(7)
Trading, fair value	[1]	7,061	8,927
Available-for-sale securities2
Available-for-sale, cost	[1]	1,000	1,148
Available-for-sale, gross unrealized gain	[1]	0	1
Available-for-sale, gross unrealized (losses)	[1]	(5)	(5)
Available-for-sale, fair value	[1]	995	1,144
Mutual Funds, Domestic Equity [Member]
Trading securities1
Trading, cost	[1]	535	535
Trading, gross unrealized gain	[1]	0	0
Trading, gross unrealized (losses)	[1]	(163)	(157)
Trading, fair value	[1]	372	378
Available-for-sale securities2
Available-for-sale, cost	[1]	394	394
Available-for-sale, gross unrealized gain	[1]	22	12
Available-for-sale, gross unrealized (losses)	[1]	0	0
Available-for-sale, fair value	[1]	416	406
Other Securities [Member]
Trading securities1
Trading, cost	[1]	45	45
Trading, gross unrealized gain	[1]	0	0
Trading, gross unrealized (losses)	[1]	(45)	(45)
Trading, fair value	[1]	0	0
Available-for-sale securities2
Available-for-sale, cost	[1]	0	56
Available-for-sale, gross unrealized gain	[1]	0	10
Available-for-sale, gross unrealized (losses)	[1]	0	0
Available-for-sale, fair value	[1]	0	66
Offshore Fund [Member]
Trading securities1
Trading, cost	[1]	0	1,184
Trading, gross unrealized gain	[1]	0	0
Trading, gross unrealized (losses)	[1]	0	(769)
Trading, fair value	[1],[3]	0	415
Common Stock - Domestic [Member]
Available-for-sale securities2
Available-for-sale, cost	[1]	0	109
Available-for-sale, gross unrealized gain	[1]	0	4
Available-for-sale, gross unrealized (losses)	[1]	0	0
Available-for-sale, fair value	[1]	0	113
Common Stock - International [Member]
Available-for-sale securities2
Available-for-sale, cost	[1]	2,554	191
Available-for-sale, gross unrealized gain	[1]	16,704	12
Available-for-sale, gross unrealized (losses)	[1]	0	0
Available-for-sale, fair value	[1]	19,258	203
Corporate Debt Securities [Member]
Available-for-sale securities2
Available-for-sale, cost	[1],[4]	1,071	1,042
Available-for-sale, gross unrealized gain	[1],[4]	632	427
Available-for-sale, gross unrealized (losses)	[1],[4]	0	0
Available-for-sale, fair value	[1],[4]	$ 1,703	$ 1,469
[1]	Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.
[2]	Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of December 31, 2017, are $17,353 and $13,847, respectively, and as of June 30, 2017, are $461 and $461, respectively.
[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]	Corporate debt matures in 2024.

INVESTMENTS (Details) - Investm

INVESTMENTS (Details) - Investment Income (Loss) Reflected in Earnings - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Investments Debt And Equity Securities Abstract
Realized gains on sales of available-for-sale securities	$ 24	$ 31	$ 31	$ 31
Realized losses on sales of trading securities	(82)	0	(736)	0
Unrealized gains (losses) on trading securities	60	(125)	746	(26)
Realized foreign currency gains (losses)	3	(7)	(19)	(5)
Other-than-temporary declines in available-for-sale securities	0	0	0	(16)
Dividend and interest income	238	350	430	518
Total Investment Income	$ 243	$ 249	$ 452	$ 502

INVESTMENTS (Details) - Summary

INVESTMENTS (Details) - Summary of Gross Unrealized Losses and Fiar Value of Available-for-Sale Investments - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Available-for-sale securities
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 995	$ 0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss	(5)	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value	0	95
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss	0	(5)
Available-for-sale securities, continuous unrealized loss position, fair value, total	995	95
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total	(5)	(5)
Common Stock - Domestic [Member]
Available-for-sale securities
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, fair value, total	0	0
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total	0	0
Common Stock - International [Member]
Available-for-sale securities
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, fair value, total	0	0
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total	0	0
Corporate Debt Securities [Member]
Available-for-sale securities
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, fair value, total	0	0
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total	0	0
Fixed Income Securities [Member]
Available-for-sale securities
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	995	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss	(5)	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value	0	95
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss	0	(5)
Available-for-sale securities, continuous unrealized loss position, fair value, total	995	95
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total	(5)	(5)
Mutual Funds, Domestic Equity [Member]
Available-for-sale securities
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, fair value, total	0	0
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total	0	0
Other Securities [Member]
Available-for-sale securities
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value	0	0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss	0	0
Available-for-sale securities, continuous unrealized loss position, fair value, total	0	0
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total	$ 0	$ 0

INVESTMENTS (Details) - Fair Va

INVESTMENTS (Details) - Fair Value, Assets Measured on Recurring Basis - USD ($) $ in Thousands		Dec. 31, 2017	Jun. 30, 2017
Trading securities
Trading securities, at fair value	[1]	$ 7,433	$ 9,720
Available-for-sale securities
Total available-for-sale securities	[1],[2]	22,372	3,401
Total Investments		29,805	13,121
Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value		7,433	9,305
Available-for-sale securities
Total available-for-sale securities		1,569	3,401
Total Investments		9,002	12,706
Fair Value, Inputs, Level 2 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		20,803	0
Total Investments		20,803	0
Fair Value, Inputs, Level 3 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Total Investments		0	0
Fixed Income Securities [Member]
Trading securities
Trading securities, at fair value	[1]	7,061	8,927
Available-for-sale securities
Total available-for-sale securities	[1]	995	1,144
Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value		7,061	8,927
Available-for-sale securities
Total available-for-sale securities		995	1,144
Fixed Income Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Fixed Income Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Mutual Funds, Domestic Equity [Member]
Trading securities
Trading securities, at fair value	[1]	372	378
Available-for-sale securities
Total available-for-sale securities	[1]	416	406
Mutual Funds, Domestic Equity [Member] | Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value		372	378
Available-for-sale securities
Total available-for-sale securities		416	406
Mutual Funds, Domestic Equity [Member] | Fair Value, Inputs, Level 2 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Mutual Funds, Domestic Equity [Member] | Fair Value, Inputs, Level 3 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Other Securities [Member]
Trading securities
Trading securities, at fair value	[1]	0	0
Available-for-sale securities
Total available-for-sale securities	[1]	0	66
Other Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	66
Other Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Other Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Trading securities
Trading securities, at fair value		0	0
Available-for-sale securities
Total available-for-sale securities		0	0
Offshore Fund [Member]
Trading securities
Trading securities, at fair value	[1],[3]	0	415
Common Stock - Domestic [Member]
Available-for-sale securities
Total available-for-sale securities	[1]	0	113
Common Stock - Domestic [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities
Total available-for-sale securities		0	113
Common Stock - Domestic [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities
Total available-for-sale securities		0	0
Common Stock - Domestic [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale securities
Total available-for-sale securities		0	0
Common Stock - International [Member]
Available-for-sale securities
Total available-for-sale securities	[1]	19,258	203
Common Stock - International [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities
Total available-for-sale securities		158	203
Common Stock - International [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities
Total available-for-sale securities		19,100	0
Common Stock - International [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale securities
Total available-for-sale securities		0	0
Corporate Debt Securities [Member]
Available-for-sale securities
Total available-for-sale securities	[1],[4]	1,703	1,469
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities
Total available-for-sale securities		0	1,469
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities
Total available-for-sale securities		1,703	0
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale securities
Total available-for-sale securities		$ 0	$ 0
[1]	Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.
[2]	Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of December 31, 2017, are $17,353 and $13,847, respectively, and as of June 30, 2017, are $461 and $461, respectively.
[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]	Corporate debt matures in 2024.

INVESTMENTS (Details) - Equity

INVESTMENTS (Details) - Equity Method Investments - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Company's share of income from equity method investment	$ 1,218	$ 0	$ 2,731	$ 0
Galileo Partners Fund [Member]
Schedule of Equity Method Investments [Line Items]
Realized gains on sales of investments			1,921
Unrealized gains on investments			9,612
Fund fees and expenses, including performance fees			(2,810)
Net income of fund			$ 8,723

INVESTMENT MANAGEMENT AND OTH31

INVESTMENT MANAGEMENT AND OTHER FEES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Advisory fees	$ 1,929	$ 1,569	$ 3,362	$ 3,460
Fund Clients [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Receivables	1,000		1,000
Galileo [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Advisory fees	287	303	505	603
Aggregate Fees Waived and Expenses Borne	9	9	33	21
Performance Fees	464		464
Galileo [Member] | Fund Clients [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Receivables	605		605
U.S. Global Investors Funds [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Advisory fees	$ 1,200	1,200	$ 2,300	2,600
Base percentage adjustment, fund performance not within benchmark index	0.25%		0.25%
Minimum performance to designated benchmark over prior rolling twelve months, percent	5.00%		5.00%
Increase (decrease) in base advisory fees realized	$ (192)	(9)	$ (308)	30
Aggregate Fees Waived and Expenses Borne	102	313	$ 334	546
U.S. Global Investors Funds [Member] | Investor Class Shares [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Administrative fee rate			0.05%
U.S. Global Investors Funds [Member] | Institutional Class Shares [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Administrative fee rate			0.04%
U.S. Global Investors Funds [Member] | Fund Clients [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Receivables	381		$ 381
U.S. Global ETFs [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Advisory fees	184	76	$ 369	142
Unitary Management Fee, Percentage of Average Net Assets			0.60%
U.S. Global ETFs [Member] | Fund Clients [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Receivables	63		$ 63
Offshore Clients [Member]
INVESTMENT MANAGEMENT AND OTHER FEES (Details) [Line Items]
Advisory fees	2	32	3	68
Performance Fees	$ 0	$ 0	$ 0	$ 0

NOTES RECEIVABLE (Details)

NOTES RECEIVABLE (Details) $ in Thousands	1 Months Ended	6 Months Ended
	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
NOTES RECEIVABLE (Details) [Line Items]
Number of promissory notes		2
Proceeds from Fees Received	$ 50
Notes, Loans and Financing Receivable, Net, Current	$ 1,952	$ 1,977
Note Receivable #1 [Member]
NOTES RECEIVABLE (Details) [Line Items]
Note Receivable, Face Amount		$ 2,000
Note recievable, Maturity		June 2,018
Note receivable, interest rate		12.00%
Notes Receivable #2 [Member]
NOTES RECEIVABLE (Details) [Line Items]
Note Receivable, Face Amount		$ 234
Note recievable, Maturity		2,021
Note receivable, interest rate		15.00%
Portion Payable Monthly [Member] | Note Receivable #1 [Member]
NOTES RECEIVABLE (Details) [Line Items]
Note receivable, interest rate		10.00%
Portion Payable at Maturity [Member] | Note Receivable #1 [Member]
NOTES RECEIVABLE (Details) [Line Items]
Note receivable, interest rate		2.00%

BORROWINGS (Details)

BORROWINGS (Details) $ in Millions	6 Months Ended
	Dec. 31, 2017USD ($)
Debt Disclosure [Abstract]
Credit facility with a one-year maturity for working capital	$ 1
Amended credit agreement expiration date	May 31, 2018
Debt Instrument, Collateral Amount	$ 1

STOCKHOLDERS' EQUITY (Details)

STOCKHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 06, 2016	Dec. 09, 2015	Dec. 10, 2014	Dec. 12, 2013	Dec. 07, 2012
STOCKHOLDERS' EQUITY (Details) [Line Items]
Repurchasing Amount				$ 131	$ 80
Options outstanding (in Shares)		2,000		2,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in Shares)		2,000		2,000
Weighted average exercise price, exercisable options (in Dollars per share)		$ 12.31		$ 12.31
Number of options forfeited (in Shares)				0
Number of options granted (in Shares)				0
Number of options exercised (in Shares)				0
Share-based Compensation		$ 0	$ 0	$ 0	$ 0
Common Class A [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Number of shares repurchased (in Shares)		36,748	32,605	45,947	47,552
Repurchasing Amount		$ 117	$ 50	$ 131	$ 80
Share Repurchase Renewal, December 2016 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount						$ 2,750
Share Repurchase Renewal, December 2014 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount								$ 2,750
Share Repurchase Renewal, December 2013 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount									$ 2,750
Share Repurchase Plan - December 2012 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount										$ 2,750
Share Repurchase Renewal, December 2015 [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Stock repurchase program, authorized amount							$ 2,750
Monthly Dividend Authorized [Member] | Scenario, Forecast [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Monthly Dividend Declared (in Dollars per share)	$ 0.0025
Monthly Dividends Paid [Member]
STOCKHOLDERS' EQUITY (Details) [Line Items]
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share)				$ 0.0025

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - shares	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Employee Stock Option [Member]
EARNINGS PER SHARE (Details) [Line Items]
Employee stock options excluded from diluted EPS	2,000	2,000	2,000	2,000

EARNINGS PER SHARE (Details) -

EARNINGS PER SHARE (Details) - Schedule of Earnings Per Share, Basic and Diluted - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Earnings Per Share Basic And Diluted Abstract
Net Income	$ 884	$ 25	$ 2,120	$ 289
Less: Net Income Attributable to Non-Controlling Interest	135	17	101	18
Net Income Attributable to U.S. Global Investors, Inc.	$ 749	$ 8	$ 2,019	$ 271
Weighted average number of outstanding shares
Basic	15,160,589	15,218,734	15,171,620	15,229,845
Effect of dilutive securities
Employee stock options	0	0	0	0
Diluted	15,160,589	15,218,734	15,171,620	15,229,845
Earnings Per Share Attributable to U.S. Global Investors, Inc.
Basic	$ 0.05	$ 0	$ 0.13	$ 0.02
Diluted	$ 0.05	$ 0	$ 0.13	$ 0.02

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
INCOME TAXES (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			28.00%					34.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability				$ 1,400
Valuation allowance		$ 1,200	$ 1,200	1,200				$ 3,300
Deferred Income Tax Expense (Benefit)				417	$ 0
Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%
Other Tax Expense (Benefit)			17
Operating loss carryover		$ 4,900	4,900	4,900
Domestic Tax Authority [Member] | Charitable Contributions [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		155	155	155
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring in Fiscal Year 2018 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		68	68	68
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring in Fiscal Year 2019 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		34	34	34
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring in Fiscal Year 2020 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		19	19	19
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring in Fiscal Year 2021 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		5	5	5
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring In Fiscal Year 2022 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		21	21	21
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring In Fiscal Year 2023 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		8	8	8
Scenario, Forecast [Member] | Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent						21.00%	28.00%
Expiring in Fiscal Year 2035 [Member] | Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Operating loss carryover		2,000	2,000	2,000
Expiring in Fiscal Year 2036 [Member] | Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Operating loss carryover		2,700	2,700	2,700
Expiring in Fiscal Year 2036 [Member] | Galileo [Member] | Foreign Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Operating loss carryover		68	68	68
Expiring in Fiscal Year 2038 [Member] | Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Operating loss carryover		$ 161	$ 161	$ 161

ACCUMULATED OTHER COMPREHENSI38

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Schedule of Accumulated Other Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax, begining of period		$ 9,433	$ 534	$ 264	$ (149)
Accumulated other comprehensive income (loss), net of tax, end of period		13,703	170	13,703	170
Other comprehensive income (loss) before reclassifications		7,800	(333)	16,976	334
Tax effect		(3,506)	0	(3,506)	0
Amount reclassified from AOCI		(24)	(31)	(31)	(15)
Tax effect		0	0	0	0
Net other comprehensive income (loss) for quarter		4,270	(364)	13,439	319
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax, begining of period	[1]	9,594	738	461	45
Accumulated other comprehensive income (loss), net of tax, end of period	[1]	13,847	399	13,847	399
Other comprehensive income (loss) before reclassifications	[1]	7,783	(308)	16,923	369
Tax effect	[1]	(3,506)	0	(3,506)	0
Amount reclassified from AOCI	[1]	(24)	(31)	(31)	(15)
Tax effect	[1]	0	0	0	0
Net other comprehensive income (loss) for quarter	[1]	4,253	(339)	13,386	354
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax, begining of period		(161)	(204)	(197)	(194)
Accumulated other comprehensive income (loss), net of tax, end of period		(144)	(229)	(144)	(229)
Other comprehensive income (loss) before reclassifications		17	(25)	53	(35)
Tax effect		0	0	0	0
Amount reclassified from AOCI		0	0	0	0
Tax effect		0	0	0	0
Net other comprehensive income (loss) for quarter		$ 17	$ (25)	$ 53	$ (35)
[1]	Amounts reclassified from unrealized gains (losses) on available-for-sale investments, net of tax, were recorded in investment income (loss) on the Consolidated Statements of Operations.

FINANCIAL INFORMATION BY BUSI39

FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Number of Operating Segments			3
Net Operating Revenues	$ 1,993	$ 1,642	$ 3,483	$ 3,623
Investment Management Services [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	1,242	1,339	2,514	3,020
Investment Management Services [Member] | U.S. Global Investors Funds [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	1,000	1,200	2,100	2,800
Investment Management Services [Member] | U.S. Global ETFs [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	184	76	369	142
Investment Management Services - Canada [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	751	303	969	603
Investment Management Services - Canada [Member] | Galileo Funds [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues	$ 747	223	$ 961	448
Investment Management Services - Canada [Member] | Other advisory clients [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net Operating Revenues		$ 78		$ 148

FINANCIAL INFORMATION BY BUSI40

FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) - Schedule Details of Financial Information by Business Segment - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2017
Segment Reporting Information [Line Items]
Net operating revenues	$ 1,993	$ 1,642	$ 3,483	$ 3,623
Net other income loss	1,475	249	3,200	502
Income (loss) before income taxes	1,326	15	2,572	299
Depreciation and amortization	61	63	122	127
Capital expenditures	0	0	0	0
Identifiable assets	45,075		45,075
Deferred tax asset	0		0
Consolidated total assets	45,075		45,075		$ 25,520
Investment Management Services [Member]
Segment Reporting Information [Line Items]
Net operating revenues	1,242	1,339	2,514	3,020
Net other income loss	5	0	7	0
Income (loss) before income taxes	(515)	(275)	(915)	(223)
Depreciation and amortization	58	59	116	119
Capital expenditures	0	0	0	0
Identifiable assets	8,702		8,702
Investment Management Services - Canada [Member]
Segment Reporting Information [Line Items]
Net operating revenues	751	303	969	603
Net other income loss	10	0	10	0
Income (loss) before income taxes	381	33	305	30
Depreciation and amortization	3	4	6	8
Capital expenditures	0	0	0	0
Identifiable assets	2,137		2,137
Corporate Investments [Member]
Segment Reporting Information [Line Items]
Net operating revenues	0	0	0	0
Net other income loss	1,460	249	3,183	502
Income (loss) before income taxes	1,460	257	3,182	492
Depreciation and amortization	0	0	0	0
Capital expenditures	0	$ 0	0	$ 0
Identifiable assets	$ 34,236		$ 34,236

CONTINGENCIES AND COMMITMENTS (

CONTINGENCIES AND COMMITMENTS (Details) - Scenario, Forecast [Member] $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)$ / shares
Class A and C [Member]
CONTINGENCIES AND COMMITMENTS (Details) [Line Items]
Amount of cash dividends to be paid to class A and C shareholders | $	$ 114
Monthly Dividend Authorized [Member]
CONTINGENCIES AND COMMITMENTS (Details) [Line Items]
Monthly Dividend Declared | $ / shares	$ 0.0025

SUBSEQUENT EVENT (Details)

SUBSEQUENT EVENT (Details) - Galileo Partners Fund [Member] - USD ($) $ in Millions	Jan. 31, 2018	Dec. 31, 2017
SUBSEQUENT EVENT (Details) [Line Items]
Equity Method Investment, Ownership Percentage		30.00%
Subsequent Event [Member]
SUBSEQUENT EVENT (Details) [Line Items]
Equity Method Investment, Ownership Percentage	24.00%
Proceeds from Sale of Equity Method Investments (in Dollars)	$ 1.5