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Derivative Instruments and Fair Value Measurements - Fair Value by Balance Sheet Grouping (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Restricted Cash   $ 100,000
Restricted cash, noncurrent $ 11,000,000 100,000
Recurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 78,163,638 56,325,961
Short-term investment   4,500,000
Recurring | Norwegian Bond Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 190,469,155 189,950,329
Recurring | New First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 58,939,307 63,758,185
Recurring | Ultraco Debt Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 81,351,115 59,975,162
Recurring | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash and cash equivalents 78,163,638 56,325,961
Short-term investment   0
Recurring | Level 1 | Norwegian Bond Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 0 0
Recurring | Level 1 | New First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 0 0
Recurring | Level 1 | Ultraco Debt Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 0 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 195,040,000 200,990,000
Recurring | Level 2 | New First Lien Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 60,000,000 65,000,000
Recurring | Level 2 | Ultraco Debt Facility    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 82,600,000 $ 61,200,000
Vessel Thrush    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Restricted Cash $ 11,000,000