Income Tax (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Operating Loss Carryforwards [Line Items]      
Current deferred tax asset $ 3,086,000 $ 0  
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest (96,638,000) (31,488,000) (6,234,000)
Current Income Tax Expense (Benefit) (10,000) 0  
Deferred Income Tax Expense (Benefit) (547,000) 495,000  
Effective Income Tax Rate, Continuing Operations 0.60% 1.60%  
Effective income tax rate, continuing operations 34.00% 34.00%  
Operating Loss Carryforwards 10,700,000    
Operating Loss Carryforwards 4,173,000 5,455,000  
Deferred Tax Assets, Other 213,000 182,000  
Deferred Tax Assets, Gross 4,386,000 5,637,000  
Deferred Tax Liabilities, Property, Plant and Equipment 9,112,000 9,022,000  
Deferred Tax Liabilities, Intangible Assets 387,000 1,364,000  
Deferred Tax Liabilities, Gross 9,499,000 10,386,000  
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate 32,857,000 10,706,000  
Effective Income Tax Rate Reconciliation, Tax Exempt Income (33,216,000) (10,296,000)  
Income Tax Reconciliation, Other Adjustments 0 222,000  
Current State and Local Tax Expense (Benefit) (159,000) 71,000  
Income Tax Reconciliation, Prior Year Income Taxes (37,000) (175,000)  
Income Tax Reconciliation, Other Reconciling Items (2,000) (33,000)  
Income Tax Expense (Benefit), Continuing Operations (557,000) 495,000 0
Deferred Tax Liabilities, Net (8,199,000) (4,749,000)  
Deferred Tax Assets, Net $ (5,113,000) $ (4,749,000)  
2012      
Operating Loss Carryforwards [Line Items]      
Margin tax rate 0.95%    
2013      
Operating Loss Carryforwards [Line Items]      
Margin tax rate 0.975%    
2014      
Operating Loss Carryforwards [Line Items]      
Margin tax rate 1.00%