7. FINANCIAL DERIVATIVE INSTRUMENTS - Trading results of the Partnership's derivative trading (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Realized, Futures Contracts	$ (52,569)	$ (544,465)	$ (1,772,118)	$ (1,409,771)
Change in Unrealized, Futures Contracts	(150,911)	127,291	181,740	229,608
Futures Contracts [Member]
Realized, Futures Contracts	(52,569)	(544,465)	(1,772,118)	(1,409,771)
Change in Unrealized, Futures Contracts	(150,911)	127,291	181,740	229,608
Futures Contracts [Member] | Currencies [Member]
Realized, Futures Contracts	106,751	165,850	(78,732)	647,408
Change in Unrealized, Futures Contracts	14,487	260,124	15,332	228,487
Futures Contracts [Member] | Energy [Member]
Realized, Futures Contracts	38,361	289,776	10,447	505,565
Change in Unrealized, Futures Contracts	22,565	(327,810)	79,283	69,451
Futures Contracts [Member] | Interest Rates [Member]
Realized, Futures Contracts	(398,124)	(83,056)	(200,584)	384,867
Change in Unrealized, Futures Contracts	(6,153)	(84,226)	(43,222)	(5,153)
Futures Contracts [Member] | Metals [Member]
Realized, Futures Contracts	(245,120)	224,487	108,736	579,631
Change in Unrealized, Futures Contracts	(137,051)	26,705	69,625	(311,073)
Futures Contracts [Member] | Stock Indices [Member]
Realized, Futures Contracts	452,845	(1,057,407)	(1,798,537)	(3,203,304)
Change in Unrealized, Futures Contracts	(73,570)	146,245	47,927	333,685
Futures Contracts [Member] | Treasury Rates [Member]
Realized, Futures Contracts	(7,282)	(84,115)	186,552	(323,938)
Change in Unrealized, Futures Contracts	$ 28,811	$ 106,253	$ 12,795	$ (85,789)