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	(5,181,172)	$ (5,181,172)
Redemptions - Redeemable Units		(221,961.479)	(5,847.953)
Net income (loss)	(2,768,177)	$ (2,747,634)	$ (20,543)
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
Partners' Capital, balance at Mar. 31, 2018	$ 42,809,538	42,347,546	461,992
Units of Partnership Interest, balance at Mar. 31, 2018	1,859,403.409
Redemptions - Limited Partners	$ (3,076,108)	$ (3,076,108)
Redemptions - Redeemable Units		(135,517.227)
Net income (loss)	(1,334,449)	$ (1,319,429)	(15,020)
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
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	(3,415,039)	$ (3,415,039)
Redemptions - Redeemable Units		(163,951.867)	(5,409.307)
Net income (loss)	2,159,557	$ 2,130,210	$ 29,347
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
Partners' Capital, balance at Mar. 31, 2019	$ 30,921,694	30,503,488	418,206
Units of Partnership Interest, balance at Mar. 31, 2019	1,483,683.173
Redemptions - General Partner	$ (118,000)		$ (118,000)
Redemptions - Limited Partners	(1,801,177)	$ (1,801,177)
Redemptions - Redeemable Units		(82,871.609)	(5,409.307)
Net income (loss)	1,622,068	$ 1,600,587	$ 21,481
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