Statements of Financial Condition - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Equity in trading account:
Unrestricted cash (Note 2e)	$ 68,726,517	$ 82,882,101
Restricted cash (Note 2e)	16,164,926	27,194,974
Net unrealized appreciation on open contracts		5,816,678
Total equity in trading account	84,891,443	115,893,753
Cash at bank (Note 1)		437
Interest receivable (Note 2h)	109,350	86,426
Total assets	85,000,793	115,980,616
Liabilities:
Net unrealized depreciation on open contracts	1,336,773
Accrued expenses:
Administrative and General Partner's fees (Note 2i)	148,184	185,208
Ongoing placement agent fees (Note 2j)		183,110
Management fees (Note 3)	129,660	162,056
Redemptions payable to Limited Partners (Notes 2n and 2o)	2,106,488	2,546,441
Total liabilities	3,721,105	3,076,815
Partners' Capital:
Total partners' capital (net asset value)	81,279,688	112,903,801
Total liabilities and partners' capital	85,000,793	115,980,616
Class Z [Member]
Partners' Capital:
General Partner, Class Z, 138,644.001 and 141,515.298 Units outstanding at December 31, 2018 and 2017, respectively	1,044,502	1,309,582
Total partners' capital (net asset value)	$ 1,044,502	$ 1,309,582
Net asset value per Unit:
Net asset value per unit	$ 7.53	$ 9.25
Class A [Member]
Partners' Capital:
Limited Partners, Class A, 4,346,874.449 and 4,822,944.482 Units outstanding at December 31, 2018 and 2017, respectively	$ 80,235,186	$ 111,594,219
Total partners' capital (net asset value)	$ 80,235,186	$ 111,594,219
Net asset value per Unit:
Net asset value per unit	$ 18.46	$ 23.14
Forward Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		$ 1,291,740
Liabilities:
Net unrealized depreciation on open contracts	$ 283,816
Futures Contracts [Member]
Equity in trading account:
Net unrealized appreciation on open contracts		$ 4,524,938
Liabilities:
Net unrealized depreciation on open contracts	$ 1,052,957