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, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 4,031	$ 5,809
Percentage of total revenue	100.00%	100.00%
Financing lease receivable	4,500	5,521
Percentage of long lived assets	100.00%	100.00%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	4,031	5,735
Percentage of total revenue	100.00%	99.00%
Financing lease receivable	4,500	5,497
Percentage of long lived assets	100.00%	100.00%
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		74
Percentage of total revenue	0.00%	1.00%
Financing lease receivable		24
Percentage of long lived assets	0.00%	0.00%
Total International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		74
Percentage of total revenue	0.00%	1.00%
Financing lease receivable		$ 24
Percentage of long lived assets	0.00%	0.00%