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, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 5,814	$ 6,544
Percentage of total revenue	100.00%	100.00%
Long-lived assets	6,959	8,276
Percentage of long lived assets	100.00%	100.00%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,657	6,544
Percentage of total revenue	97.00%	100.00%
Long-lived assets	6,935	8,276
Percentage of long lived assets	100.00%	100.00%
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	157
Percentage of total revenue	3.00%	0.00%
Long-lived assets	24
Percentage of long lived assets	0.00%	0.00%
Total International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	157
Percentage of total revenue	3.00%	0.00%
Long-lived assets	$ 24
Percentage of long lived assets	0.00%	0.00%