Statements of Financial Condition - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Equity in trading account:
Unrestricted cash	$ 56,692,879	$ 23,029,544
Restricted cash	8,138,279	14,906,464
Total equity in trading account	83,447,607	94,872,481
Cash at bank	608
Interest receivable	8,653	3,540
Total assets	83,456,868	94,876,021
Liabilities:
Redemptions payable to Limited Partners	1,386,364	1,554,009
Redemptions payable to General Partner	50,000
Accrued expenses:
Ongoing placement agent fees	131,724	163,603
General Partner fees	131,724	163,603
Management fees	101,906	141,356
Total liabilities	2,139,699	2,022,571
Partners' Capital:
Limited Partners (3,012,664.055 and 3,285,860.484 Units at June 30, 2016 and December 31, 2015, respectively)	80,453,731	91,783,172
General Partner (32,332.233 and 38,316.597 Units at June 30, 2016 and December 31, 2015, respectively)	863,438	1,070,278
Total partners' capital (net asset value)	81,317,169	92,853,450
Total liabilities and partners' capital	$ 83,456,868	$ 94,876,021
Net asset value per Unit	$ 26.71	$ 27.93
U.S. Treasury Bills [Member]
Equity in trading account:
Investment in U.S. Treasury bills, at fair value (amortized cost $15,992,566 and $55,497,357 at June 30, 2016 and December 31, 2015, respectively)	$ 15,997,324	$ 55,493,206
Futures Contracts [Member]
Equity in trading account:
Net unrealized appreciation (depreciation) on open contracts	2,619,125	1,399,436
Forward Contracts [Member]
Equity in trading account:
Net unrealized appreciation (depreciation) on open contracts	$ (337,981)	$ 43,831