Statements of Changes in Partners' Capital - USD ($)	Total	Limited Partners [Member]	General Partner [Member]
Partners' Capital, balance at Dec. 31, 2017	$ 46,498,213	$ 45,880,815	$ 617,398
Units of Partnership Interest, balance at Dec. 31, 2017	1,951,695.614
Redemptions - General Partner	$ (149,883)		$ (149,883)
Redemptions - Limited Partners	(6,934,109)	$ (6,934,109)
Redemptions - Redeemable Units		(299,626.331)	(5,847.953)
Net income (loss)	(1,551,366)	$ (1,545,376)	$ (5,990)
Partners' Capital, balance at Sep. 30, 2018	$ 37,862,855	37,401,330	461,525
Units of Partnership Interest, balance at Sep. 30, 2018	1,646,221.330
Partners' Capital, balance at Jun. 30, 2018	$ 38,398,981	37,952,009	446,972
Units of Partnership Interest, balance at Jun. 30, 2018	1,723,886.182
Redemptions - Limited Partners	$ (1,752,937)	$ (1,752,937)
Redemptions - Redeemable Units		(77,664.852)
Net income (loss)	1,216,811	$ 1,202,258	14,553
Partners' Capital, balance at Sep. 30, 2018	$ 37,862,855	37,401,330	461,525
Units of Partnership Interest, balance at Sep. 30, 2018	1,646,221.330
Partners' Capital, balance at Dec. 31, 2018	$ 31,998,067	31,587,727	410,340
Units of Partnership Interest, balance at Dec. 31, 2018	1,564,763.431
Redemptions - General Partner	$ (118,000)		$ (118,000)
Redemptions - Limited Partners	(5,259,991)	$ (5,259,991)
Redemptions - Redeemable Units		(241,865.544)	(5,409.307)
Net income (loss)	4,605,658	$ 4,550,600	$ 55,058
Partners' Capital, balance at Sep. 30, 2019	$ 31,225,734	30,878,336	347,398
Units of Partnership Interest, balance at Sep. 30, 2019	1,317,488.580
Partners' Capital, balance at Jun. 30, 2019	$ 30,624,585	30,302,898	321,687
Units of Partnership Interest, balance at Jun. 30, 2019	1,395,402.257
Redemptions - Limited Partners	$ (1,844,952)	$ (1,844,952)
Redemptions - Redeemable Units		(77,913.677)
Net income (loss)	2,446,101	$ 2,420,390	25,711
Partners' Capital, balance at Sep. 30, 2019	$ 31,225,734	$ 30,878,336	$ 347,398
Units of Partnership Interest, balance at Sep. 30, 2019	1,317,488.580