Note 2 - Significant Accounting Policies (Details) - USD ($)		Sep. 30, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Deposits with Clearing Organizations and Others, Securities	[1]	$ 62,560,188	$ 52,853,943	[2]

[1] Cost of short-term investments held at brokers (restricted): $62,559,499 and $52,852,591, respectively

[2] Previously reported as "Statements of Financial Condition." Please refer to Note 2A.