STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (Unaudited) (USD $)	Limited Partners [Member]	General Partner [Member]	Total
Balance at Dec. 31, 2011	$ 283,036,281	$ 3,108,127	$ 286,144,408
Balance (in units) at Dec. 31, 2011			9,158,617.900
Increase/(decrease) in Partners' Capital [Roll Forward]
Net Income (Loss)	(3,827,262)	(49,990)	(3,877,252)
Redemptions	(33,915,028)	(299,992)	(34,215,020)
Redemptions (in units)			(1,089,453.401)
Balance at Jun. 30, 2012	245,293,991	2,758,145	248,052,136
Balance (in units) at Jun. 30, 2012			8,069,164.499
Balance at Dec. 31, 2012	193,760,270	2,213,811	195,974,081
Balance (in units) at Dec. 31, 2012			7,059,632.492
Increase/(decrease) in Partners' Capital [Roll Forward]
Net Income (Loss)	243,135	(1,231)	241,904
Redemptions	(19,974,556)	(250,012)	(20,224,568)
Redemptions (in units)			(708,936.623)
Balance at Jun. 30, 2013	$ 174,028,849	$ 1,962,568	$ 175,991,417
Balance (in units) at Jun. 30, 2013			6,350,695.869