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Summary of Significant Accounting Policies (Details Textual)
1 Months Ended 12 Months Ended
Nov. 01, 2017
USD ($)
Jan. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Partnership
shares
Dec. 31, 2017
USD ($)
shares
Summary of Significant Accounting Policies (Textual)        
Purchaser imbalance receivable     $ 551,000 $ 193,000
Purchaser imbalance liability     0 25,000
Additions of ARO       14,100,000
Estimated cost of retirement obligations       2,400,000
Fair value of warrants accounted for gains     $ 225,000 $ 3,100,000
Number of consolidated partnerships | Partnership     46  
Cost method investments, additional information     The cost method of accounting is generally used for investments in affiliates in which we have less than 20% of the voting interests of a corporate affiliate or less than a 3% to 5% interest of a partnership or limited liability company and do not have significant influence.  
Equity method investment, additional information     If we hold between 20% and 50% of the voting interest in non-consolidated corporate affiliates or generally greater than a 3% to 5% interest of a partnership or limited liability company and exert significant influence or control (e.g., through our influence with a seat on the board of directors or management of operations), the equity method of accounting is generally used to account for the investment. Investment in affiliates will increase or decrease by our share of the affiliates' profits or losses and such profits or losses are recognized in our consolidated statements of operations. If we hold greater than 50% of voting shares, we will generally consolidate the entities under the voting interest model. Prior to their consolidation on February 1, 2018 and December 31, 2018 for our investments in Carbon California and Carbon Appalachia, respectively, we used the hypothetical liquidation at book value ("HLBV") method to recognize our share of profits or losses.  
Insurance receivable     $ 522,000  
Insurance collected from previously submitted claims     $ 3,100,000  
Income taxes, description     The Tax Cut and Jobs Act ("TCJA"), we were required to remeasure deferred income taxes at the lower 21% corporate rate as of the date the TCJA was signed into law even though the reduced rate became effective January 1, 2018.  
Retirement obligations accrued discount factor percentage     10.00%  
Inventory adjustments     $ 600,000  
Description of oil and natural gas sales     None of the above purchasers comprised more than 10% of total accounts receivable. One purchaser's receivable acquired with the closing of the OIE Membership Acquisition accounts for approximately 10% of accounts receivable as of December 31, 2018.  
Description of other property, plant and equipment     Office furniture, automobiles, and computer hardware and software are depreciated over three to five years. Buildings are depreciated over 27.5 years, and pipeline facilities and equipment are depreciated over twenty years.  
Financing costs     $ 2,000,000  
Purchaser A [Member]        
Summary of Significant Accounting Policies (Textual)        
Percentages by purchaser     17.00%  
Oil and Natural Gas Sales [Member]        
Summary of Significant Accounting Policies (Textual)        
Percentages by purchaser     10.00% 10.00%
Subsequent Event [Member]        
Summary of Significant Accounting Policies (Textual)        
Payment of insurance   $ 800,000    
Warrant [Member]        
Summary of Significant Accounting Policies (Textual)        
Anti-dilutive earnings per shares | shares       519,000
Restricted Stock [Member]        
Summary of Significant Accounting Policies (Textual)        
Anti-dilutive earnings per shares | shares     259,000 271,000
Restricted Performance Units [Member]        
Summary of Significant Accounting Policies (Textual)        
Common stock equivalent restricted to future contingencies | shares     280,000  
Anti-dilutive earnings per shares | shares     314,000  
Nytis LLC [Member]        
Summary of Significant Accounting Policies (Textual)        
Percentage of ownership interest in the subsidiary     98.10%  
Nytis USA [Member]        
Summary of Significant Accounting Policies (Textual)        
Percentage of ownership interest in the subsidiary     100.00%  
Carbon Appalachia [Member]        
Summary of Significant Accounting Policies (Textual)        
Percentage of ownership interest in the subsidiary     100.00%  
Carbon Appalachia [Member] | Warrant [Member]        
Summary of Significant Accounting Policies (Textual)        
Fair value of warrants accounted for gains $ 1,300,000     $ 619,000,000
Minimum [Member]        
Summary of Significant Accounting Policies (Textual)        
Estimated cost of retirement obligations       20,000
Maximum [Member]        
Summary of Significant Accounting Policies (Textual)        
Estimated cost of retirement obligations       $ 45,000