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Derivative Instruments and Fair Value Measurements - Fair Value by Balance Sheet Grouping (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Restricted cash $ 74,917 $ 74,917
Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 56,325,961 76,591,027
Short-term investment 4,500,000  
Recurring | Norwegian Bond Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 189,950,329  
Recurring | New First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 63,758,185  
Recurring | Ultraco Debt Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 59,975,162  
Recurring | First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt   204,352,318
Recurring | Second Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt   51,591,226
Recurring | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 56,325,961 76,591,027
Short-term investment 0  
Recurring | Level 1 | Norwegian Bond Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 0  
Recurring | Level 1 | New First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 0  
Recurring | Level 1 | Ultraco Debt Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 0  
Recurring | Level 1 | First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt   0
Recurring | Level 1 | Second Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt   0
Recurring | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 0 0
Short-term investment 4,500,000  
Recurring | Level 2 | Norwegian Bond Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 200,990,000  
Recurring | Level 2 | New First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 65,000,000  
Recurring | Level 2 | Ultraco Debt Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt $ 61,200,000  
Recurring | Level 2 | First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt   209,099,000
Recurring | Level 2 | Second Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt   $ 67,327,843