DISCONTINUED OPERATIONS (Details)	5 Months Ended
Dec. 09, 2015
Distributor [Member]
DISCONTINUED OPERATIONS (Details) [Line Items]
Investment Distribution Fee, Annual Rate, Percentage	0.25%

The annual rate investment distribution fee received, as a percentage, of the average daily net assets of the investor class of each of the equity funds.

No definition available.

Name:	grow_InvestmentDistributionFeeAnnualRatePercentage
Namespace Prefix:	grow_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration