XML 63 R50.htm IDEA: XBRL DOCUMENT v3.10.0.1
Investments in Affiliates (Details Textual 1) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Nov. 01, 2017
Feb. 15, 2017
May 04, 2018
Apr. 30, 2018
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
May 01, 2018
Feb. 01, 2018
Jan. 31, 2018
Apr. 03, 2017
Investments in Affiliates (Textual)                          
Revolving credit facility, description       Interest is payable quarterly and accrues on borrowings under the CAE Credit Facility at a rate per annum equal to either (i) the base rate plus an applicable margin between 0.00% and 1.00% or (ii) the Adjusted LIBOR rate plus an applicable margin between 3.00% and 4.00% at our option. The actual margin percentage is dependent on the CAE Credit Facility utilization percentage. CAE is obligated to pay certain fees and expenses in connection with the CAE Credit Facility, including a commitment fee for any unused amounts of 0.50%.The CAE Credit Facility contains affirmative and negative covenants that, among other things, limit CAE's ability to (i) incur additional debt; (ii) incur additional liens; (iii) sell, transfer or dispose of assets; (iv) merge or consolidate, wind-up, dissolve or liquidate; (v) make dividends and distributions on, or repurchases of, equity; (vi) make certain investments; (vii) enter into certain transactions with our affiliates; (viii) enter into sales-leaseback transactions; (ix) make optional or voluntary payments of debt; (x) change the nature of our business; (xi) change our fiscal year to make changes to the accounting treatment or reporting practices; (xii) amend constituent documents; and (xiii) enter into certain hedging transactions.The affirmative and negative covenants are subject to various exceptions, including basket amounts and acceptable transaction levels. In addition, the CAE Credit Facility requires CAE's compliance, on a consolidated basis, with (i) a maximum Debt/EBITDA ratio of 3.5 to 1.0 and (ii) a minimum current ratio of 1.0 to 1.0.                  
Outstanding under the credit facility             $ 38,000,000            
Earned net gain         $ 157,000 $ (285,000) 6,511,000 $ (285,000)          
Investments in affiliates         13,459,000   13,459,000   $ 14,267,000        
Total equity method income         $ 83,000 $ 1,000,000          
Carbon Appalachia LLC Agreement [Member]                          
Investments in Affiliates (Textual)                          
Warrant exercise price         $ 7.20   $ 7.20            
Warrant issuance         408,000   408,000            
Yorktown [Member] | Class A Units [Member]                          
Investments in Affiliates (Textual)                          
Fair value of warrant $ 1,900,000                        
Investments in affiliates $ 2,900,000                        
Carbon Appalachia [Member]                          
Investments in Affiliates (Textual)                          
Equity commitment         $ 37,000,000   $ 37,000,000            
Ownership interest, percentage     100.00%                    
Percentage of interest                         75.00%
Business acquisitions, description     On May 4, 2018, we entered into a Membership Interest Purchase Agreement (the "MIPA") with Old Ironsides. Old Ironsides owns 73.5%, and we own 26.5%, of the issued and outstanding Class A Units of Carbon Appalachia. We also own all of the Class B and Class C units of Carbon Appalachia. Pursuant to the MIPA, we may acquire all of Old Ironsides' membership interests of Carbon Appalachia. Subject to the terms and conditions of the MIPA, we will pay Old Ironsides, approximately $58.0 million at closing, subject to adjustment, in accordance with the MIPA. The MIPA is contingent upon the issuance of common equity of the Company. We have filed a registration statement.                    
Revolving credit facility, description                 Carbon Tennessee Company, LLC ("CAE"), a subsidiary of Carbon Appalachia, entered into a 4-year $100.0 million (with $1.5 million sublimit for letters of credit) senior secured asset-based revolving credit facility with Legacy Texas Financial Group, Inc. ("LegacyTexas Bank") with an initial borrowing base of $10.0 million (the "CAE Credit Facility").        
Earned net gain         $ 139,000   $ 1,100,000            
Payment subject to adjustment amount     $ 58,000,000                    
Carbon Appalachia [Member] | Senior Revolving Notes [Member]                          
Investments in Affiliates (Textual)                          
Revolving credit facility, description       CAE Credit Facility was amended, which increased the borrowing base to $70.0 million with redeterminations as of April 1 and October 1 each year.                  
Carbon Appalachia [Member] | Drilling [Member]                          
Investments in Affiliates (Textual)                          
Percentage of interest                         100.00%
Carbon Appalachia [Member] | Class A Units [Member]                          
Investments in Affiliates (Textual)                          
Ownership interest, percentage 7.95%                        
Carbon Appalachia [Member] | Class B Units [Member]                          
Investments in Affiliates (Textual)                          
Ownership interest, percentage 26.50%                        
Carbon Appalachia [Member] | Class C Units [Member]                          
Investments in Affiliates (Textual)                          
Ownership interest, percentage 100.00%                        
Carbon Appalachia [Member] | Nytis LLC [Member]                          
Investments in Affiliates (Textual)                          
Percentage of interest                         25.00%
Carbon Appalachia [Member] | Carbon Appalachia LLC Agreement [Member]                          
Investments in Affiliates (Textual)                          
Equity commitment                         $ 2,000,000
Percentage of interest         14.70%   14.70%            
Carbon Appalachia [Member] | Carbon Appalachia LLC Agreement [Member] | Warrant [Member]                          
Investments in Affiliates (Textual)                          
Fair value of warrant $ 1,300,000               $ 619,000        
Carbon Appalachia [Member] | Carbon Appalachia LLC Agreement [Member] | Class A Units [Member]                          
Investments in Affiliates (Textual)                          
Equity commitment                         $ 240,000
Acquired interest                         2.00%
Ownership interest, percentage         27.24%   27.24%            
Percentage of interest         10.00%   10.00%            
Investment in cash and unevaluated property         $ 6,900,000   $ 6,900,000            
Carbon Appalachia [Member] | Carbon Appalachia LLC Agreement [Member] | Class B Units [Member]                          
Investments in Affiliates (Textual)                          
Ownership interest, percentage                         14.70%
Fair value of warrant $ 924,000                        
Carbon Appalachia [Member] | Carbon Appalachia LLC Agreement [Member] | Class C Units [Member]                          
Investments in Affiliates (Textual)                          
Acquired interest                         1.00%
Ownership interest, percentage         27.24%   27.24%            
Percentage of interest         10.00%   10.00%            
Investment in cash and unevaluated property         $ 6,900,000   $ 6,900,000            
Carbon Appalachia [Member] | Yorktown [Member] | Warrant [Member]                          
Investments in Affiliates (Textual)                          
Warrant issuance 432,000                        
Carbon Appalachia [Member] | Yorktown and Old Ironsides Energy, LLC [Member]                          
Investments in Affiliates (Textual)                          
Equity commitment                         $ 100,000,000
Carbon California [Member]                          
Investments in Affiliates (Textual)                          
Ownership interest, percentage                   53.90% 38.59%    
Percentage of interest                       17.80%  
Business acquisitions, description   (i) issued and sold Class A Units to Yorktown and Prudential for an aggregate cash consideration of $22.0 million, (ii) entered into a Note Purchase Agreement (the "Note Purchase Agreement") with Prudential Legacy Insurance Company of New Jersey and Prudential Insurance Company of America for the issuance and sale of up to $25.0 million of Senior Secured Revolving Notes (the "Senior Revolving Notes") due February 15, 2022 and (iii) entered into a Securities Purchase Agreement (the "Securities Purchase Agreement") with Prudential for the issuance and sale of $10.0 million of Senior Subordinated Notes (the "Subordinated Notes") due February 15, 2024. We are not a guarantor of the Senior Revolving Notes or the Subordinate Notes.                      
Warrant exercise price                     $ 7.20    
Earned net gain             5,400,000            
Total equity method income             $ 32,000