Summary of Significant Accounting Policies (Summary of Geographic Information Relating to Sources, by Nation, of Partnership's Total Revenue and Long-Lived Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 582	$ 583	$ 1,157	$ 1,259
Percentage of total revenue			100.00%	100.00%
Long-lived assets receivables	$ 5,288		$ 5,288		$ 5,378
Percentage of long lived assets	100.00%		100.00%		100.00%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue			$ 997	$ 1,152
Percentage of total revenue			86.00%	92.00%
Long-lived assets receivables	$ 5,048		$ 5,048		$ 5,138
Percentage of long lived assets	95.00%		95.00%		96.00%
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue			$ 160	$ 107
Percentage of total revenue			14.00%	8.00%
Long-lived assets receivables	$ 240		$ 240		$ 240
Percentage of long lived assets	5.00%		5.00%		4.00%
Total International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue			$ 160	$ 107
Percentage of total revenue			14.00%	8.00%
Long-lived assets receivables	$ 240		$ 240		$ 240
Percentage of long lived assets	5.00%		5.00%		4.00%