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FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues	$ 1,471	$ 1,669	$ 1,642	$ 1,981	$ 1,636	$ 1,330	$ 1,289	$ 1,250	$ 6,763	$ 5,505	$ 7,333
Investment Management Services [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues									5,663	4,341	5,326
Investment Management Services [Member] | U.S. Global Investors Funds [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues									5,200	4,000	5,200
Investment Management Services [Member] | U.S. Global Investors Funds [Member] | Discontinued Operations [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues										608	2,000
Investment Management Services - Canada [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues									1,100	1,164	2,007
Investment Management Services - Canada [Member] | Galileo Funds [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues									866	900	1,600
Investment Management Services - Canada [Member] | Other advisory clients [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Net operating revenues									$ 220	$ 254	$ 354
Galileo [Member]
FINANCIAL INFORMATION BY BUSINESS SEGMENT (Details) [Line Items]
Percentage of shares issued and outstanding of Galileo									65.00%

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Amount of revenue from providing investment advisory, asset management and administrative services, including, but not limited to, distribution and shareholder services, accounting, tax, legal, regulatory filing, share registration, and shareholder correspondence activities.

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