Expense Example (Currency Strategies Trust, USD $)	12 Months Ended
May 01, 2011
Series I, Currency Strategies Trust
Expense Example:
Year 1	$ 106
Year 3	331
Series II, Currency Strategies Trust
Expense Example:
Year 1	126
Year 3	393
Series NAV, Currency Strategies Trust
Expense Example:
Year 1	101
Year 3	$ 315

The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.

Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example

Name:	rr_ExpenseExampleYear03
Namespace Prefix:	rr
Data Type:	rr:NonNegativeMonetaryType
Balance Type:	na
Period Type:	duration