Statements of Changes in Partners' Capital - USD ($)	Total	Limited Partners [Member]	Special Limited Partner [Member]	General Partner [Member]	Class A [Member]	Class A [Member] Limited Partners [Member]	Class D [Member]	Class D [Member] Limited Partners [Member]	Class D [Member] General Partner [Member]	Class GP [Member]	[2]	Class GP [Member] Limited Partners [Member]	[2]	Class GP [Member] Special Limited Partner [Member]	[2]	Class GP [Member] General Partner [Member]	[2]
Net Asset Value Per Unit					$ 1,158.41		$ 1,201.01
Partners' capital, Amount, beginning balance at Dec. 31, 2014	$ 133,297,371				$ 125,736,962		$ 7,560,409
Partners' capital, Units, beginning balance at Dec. 31, 2014	114,837.79				108,542.74		6,295.05
Net Income (loss) available for pro rata distribution	$ 2,972,403				$ 2,738,420		$ 223,675			$ 10,308	[1]
Redemptions, Amount		$ (46,739,090)		$ (1,525,629)		$ (41,418,066)		$ (5,321,024)	$ (1,525,629)
Redemptions, Units		(39,271.60)		(1,235.75)		(34,966.99)		(4,304.61)	(1,235.75)
Subscriptions, Amount				$ 325,000												$ 325,000
Subscriptions, Units				325.00												325.00
Partners' capital, Amount, ending balance at Dec. 31, 2015	$ 88,330,055				$ 87,057,316		$ 937,431			$ 335,308
Partners' capital, Units, ending balance at Dec. 31, 2015	74,655.44				73,575.75		754.69			325.00
Net Asset Value Per Unit					$ 1,183.23		$ 1,242.14			$ 1,031.72
Net Income (loss) available for pro rata distribution	$ 3,282,950				$ 3,199,587		$ 50,707			$ 32,656	[1]
Redemptions, Amount		$ (20,031,468)				$ (20,031,468)
Redemptions, Units		(16,709.88)				(16,709.88)
Allocation of Redeemable Units to the Special Limited Partner, Amount			$ 2,588											$ 2,588
Allocation of Redeemable Units to the Special Limited Partner, Units			2.31											2.31
Subscriptions, Amount		$ 216,440						$ 216,440
Subscriptions, Units		165.31						165.31
Partners' capital, Amount, ending balance at Dec. 31, 2016	$ 71,800,565				$ 70,225,435		$ 1,204,578			$ 370,552
Partners' capital, Units, ending balance at Dec. 31, 2016	58,113.18				56,865.87		920.00			327.31
Net Asset Value Per Unit					$ 1,234.93		$ 1,309.33			$ 1,132.11
Net Income (loss) available for pro rata distribution	$ 1,196,611				$ 1,136,990		$ 27,695			$ 31,926	[1]
Redemptions, Amount		$ (14,512,539)				$ (13,222,864)		$ (789,673)				$ (500,000)
Redemptions, Units		(11,475.15)				(10,470.83)		(590.27)				(414.05)
Allocation of Redeemable Units to the Special Limited Partner, Amount			$ 453,819											$ 453,817
Allocation of Redeemable Units to the Special Limited Partner, Units			379.80											379.80
Subscriptions, Amount		$ 106,760						$ 106,760
Subscriptions, Units		79.80						79.80
Partners' capital, Amount, ending balance at Dec. 31, 2017	$ 59,045,216				$ 58,139,561		$ 549,360			$ 356,295
Partners' capital, Units, ending balance at Dec. 31, 2017	47,097.63				46,395.04		409.53			293.06
Net Asset Value Per Unit					$ 1,253.14		$ 1,341.44			$ 1,215.79

[1] Class GP commenced on May 1, 2015 (325.0000 units)

[2] Class GP commenced on May 1, 2015.