Members' Capital (Details)	3 Months Ended		6 Months Ended		9 Months Ended
	Sep. 30, 2017 shares	Sep. 30, 2016 shares	Dec. 31, 2016 $ / item	Jun. 30, 2016 $ / item	Sep. 30, 2017 USD ($) $ / shares $ / item shares	Sep. 30, 2016 USD ($) $ / shares $ / item shares
Members' Capital (Details) [Line Items]
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Declared					$ 509,894	$ 639,767
Weighted Average Limited Partnership Units Outstanding, Basic (in Shares) | shares	1,738,006	1,744,006			1,740,006	1,747,618
Distributions Per Unit Of Net Income (in Dollars per Item) | $ / item			0.0946	0.1313
Sale Proceeds Distribution Made To Member Or Limited Partner					$ 20,202	$ 121,212
Partners' Capital Account, Redemptions					37,456	77,729
Limited Member [Member]
Members' Capital (Details) [Line Items]
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Declared					$ 495,001	$ 622,999
Distributions Per Limited Partnership Unit Outstanding, Basic (in Dollars per share) | $ / shares					$ 0.28	$ 0.36
Weighted Average Limited Partnership Units Outstanding, Basic (in Shares) | shares					1,740,006	1,747,618
Distributions Per Unit Of Net Income (in Dollars per Item) | $ / item					0.08	0.09
Distributions Per Unit Of Return Of Capital (in Dollars per Item) | $ / item					0.20	0.27
Sale Proceeds Distribution Made To Member Or Limited Partner					$ 20,000	$ 120,000
Sale Proceeds Distribution Made to Limited Member Per Unit (in Dollars per Item) | $ / item					0.01	0.07
Partners' Capital Account, Units, Redeemed (in Shares) | shares					6,000.0	10,835.5
Partners' Capital Account, Redemptions					$ 36,332	$ 75,397
Managing Member [Member]
Members' Capital (Details) [Line Items]
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Declared					14,893	16,768
Sale Proceeds Distribution Made To Member Or Limited Partner					202	1,212
Partners' Capital Account, Redemptions					$ 1,124	$ 2,332