Changes in Net Assets (USD $)	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Changes In Net Assets
Net assets at beginning of period	$ 99,674,394	$ 100,342,985
Capital contributions	17,095,966	17,205,974
Redemptions	17,448,289	15,581,610
Net (decrease) increase from operations	(5,806,380)	2,182,650
NET ASSETS AT END OF PERIOD	$ 93,515,691	$ 104,149,999