Significant Accounting Policies (Tables)

v2.4.0.6

Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2013
Accounting Policies [Abstract]
Major components of net realized and unrealized gain on trading securities	The major components of net realized and unrealized gain or loss on trading securities for the three-month periods ended March 31, 2013 and February 29, 2012 and for the one-month transition period ended December 31, 2012 are as follows: Major Components of Net Realized and Unrealized Gain (Loss) on Trading Securities     For the Three Months Ended   For the One-Month Transition Period Ended   March 31, 2013   February 29, 2012   December 31, 2012 Net unrealized gain on trading securities   $ 751,004   $ —   $ 4,663,211 Net realized gain (loss) on trading securities   (434,941 )   2,862,272   (6,432,269 ) Total net realized and unrealized gain (loss) on trading securities   $ 316,063   $ 2,862,272   $ (1,769,058 )