Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Narrative) (Details)

v2.4.0.8
Summary of Significant Accounting Policies (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Minimum [Member]
Dec. 31, 2013
Maximum [Member]
Dec. 31, 2013
General and Administrative Expense [Member]
Dec. 31, 2012
General and Administrative Expense [Member]
Dec. 31, 2011
General and Administrative Expense [Member]
Dec. 31, 2013
Natural Gas [Member]
Dec. 31, 2012
Natural Gas [Member]
Dec. 31, 2013
Other Property and Equipment [Member]
Dec. 31, 2012
Other Property and Equipment [Member]
Dec. 31, 2013
Other Property and Equipment [Member]
General and Administrative Expense [Member]
Dec. 31, 2012
Other Property and Equipment [Member]
General and Administrative Expense [Member]
Dec. 31, 2011
Other Property and Equipment [Member]
General and Administrative Expense [Member]
Sep. 30, 2013
Undivided Interest [Member]
Medusa Spar, LLC [Member]
Dec. 31, 2013
Callon Entrada [Member]
Dec. 31, 2013
Medusa Field [Member]
Dec. 31, 2013
Medusa Spar, LLC [Member]
Accounting Policies [Line Items]                                      
Allowance for doubtful accounts receivable, current $ 73 $ 34                                  
Provision for doubtful accounts           45 0 (281)                      
Gas balancing receivables                 71 93                  
Gas balancing payable                 126 653                  
Capitalized costs, oil and gas producing activities, net 14,753 13,331 11,857                                
Property, Plant and Equipment, Other, Net 7,255 10,058                 7,255 6,424              
Useful life       3 years 20 years                            
Depreciation                         750 760 645        
Accumulated depreciation                     13,240 13,238              
Assets Held-for-sale, at Carrying Value                                 0    
Capitalized Costs, Unproved Properties, Capitalized Interest 4,410 2,109 573                                
Interest paid $ 13,189 $ 13,920 $ 14,922                                
Divestiture of Business, Percentage Of Business Sold                                   15.00% 10.00%
Ownership Percentage of Production Facilities                               75.00%