Divestitures and Discontinued Operations Piceance Basin Asset Divestiture (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Payments of Capital Distribution $ 235,000  
Capitalized Costs, Oil and Gas Producing Activities, Gross 1,285,597 3,167,657 [1]
Oil and Gas Property, Successful Effort Method, Accumulated Depreciation, Depletion and Amortization 901,203 2,270,162
Piceance and NECO Asset Group [Member]
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Oil and Gas Property, Successful Effort Method, Accumulated Depreciation, Depletion and Amortization 699,000  
Gain (Loss) on Disposition of Oil and Gas Property 201,000  
Managing General Partner
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Proceeds from Sale of Property, Plant, and Equipment 420,000  
General Partner [Member]
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Payments of Capital Distribution 47,000  
Limited Partner [Member]
   
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Payments of Capital Distribution $ 188,000  
[1] Includes Piceance Basin crude oil and natural gas properties of $954,000, and related accumulated DD&A of $692,000, divested in 2013. See Note 11, Divestiture and Discontinued Operations, for further information.