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Derivative Instruments (Details)
3 Months Ended
Mar. 31, 2020
USD ($)
t
$ / d
$ / T
Mar. 31, 2019
USD ($)
Dec. 31, 2020
vessel
Dec. 31, 2019
USD ($)
Derivative Instruments, Gain (Loss) [Line Items]        
Fair value of derivative instruments - current $ 3,314,556     $ 756,229
Fair value of derivative instruments - non current       0
Designated as Hedging Instrument | Fair value of derivative instruments - current        
Derivative Instruments, Gain (Loss) [Line Items]        
Fair value of derivative instruments - current 94,860     0
Designated as Hedging Instrument | Fair value of derivative instruments - noncurrent        
Derivative Instruments, Gain (Loss) [Line Items]        
Fair value of derivative instruments - non current 177,008     0
Level 2 | Not Designated as Hedging Instrument        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives not designated as hedging instruments, location of (gain)/loss recognized $ (7,861,841) $ (2,438,255)    
Interest Rate Swap | New Ultraco Debt Facility        
Derivative Instruments, Gain (Loss) [Line Items]        
Interest Rate Swap detail 0.64%      
Notional Amount outstanding $ 76,101,584     0
High Sulfur Fuel Cost Spread | Expiring In 2020        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative notional mass (metric tons) | t 38,700      
High Sulfur Fuel Cost Spread | Expiring In 2020 | Minimum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 225      
High Sulfur Fuel Cost Spread | Expiring In 2020 | Maximum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 297      
Low Sulfur Fuel Cost Spread | Expiring In 2020        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative notional mass (metric tons) | t 38,700      
Low Sulfur Fuel Cost Spread | Expiring In 2020 | Minimum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 446      
Low Sulfur Fuel Cost Spread | Expiring In 2020 | Maximum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 565      
Low Sulfur Fuel Cost Spread | Expiring In 2021        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative notional mass (metric tons) | t 72,000      
Low Sulfur Fuel Cost Spread | Expiring In 2021 | Minimum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 411      
Low Sulfur Fuel Cost Spread | Expiring In 2021 | Maximum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 486      
Bunker Swaps | Expiring In 2020        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative notional mass (metric tons) | t 26,100      
Bunker Swaps | Expiring In 2020 | Minimum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 121      
Bunker Swaps | Expiring In 2020 | Maximum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 524      
Bunker Swaps | Expiring In 2021        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative notional mass (metric tons) | t 72,000      
Bunker Swaps | Expiring In 2021 | Minimum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 264      
Bunker Swaps | Expiring In 2021 | Maximum        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative contract price (usd per metric ton) | $ / T 305      
FFAs - realized (gain)/loss | Forecast        
Derivative Instruments, Gain (Loss) [Line Items]        
Number of days hedged | vessel     1,575  
FFAs - realized (gain)/loss | Minimum        
Derivative Instruments, Gain (Loss) [Line Items]        
Vessel hiring rate (in dollars per day) | $ / d 8,200      
FFAs - realized (gain)/loss | Maximum        
Derivative Instruments, Gain (Loss) [Line Items]        
Vessel hiring rate (in dollars per day) | $ / d 11,650      
FFAs - realized (gain)/loss | Other current assets        
Derivative Instruments, Gain (Loss) [Line Items]        
Collateral related to derivative instruments under collateral security arrangements $ 2,600,000     600,000
FFAs - realized (gain)/loss | Level 2 | Not Designated as Hedging Instrument | Other current assets        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative asset 1,968,255     475,650
FFAs - realized (gain)/loss | Level 2 | Realized and unrealized (gain)/loss on derivative instruments, net | Not Designated as Hedging Instrument        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives not designated as hedging instruments, location of (gain)/loss recognized (179,505) 516,531    
FFAs - unrealized gain | Level 2 | Realized and unrealized (gain)/loss on derivative instruments, net | Not Designated as Hedging Instrument        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives not designated as hedging instruments, location of realized/unrealized gain (1,440,676) (1,686,819)    
Bunker swaps - realized gain | Level 2 | Realized and unrealized (gain)/loss on derivative instruments, net | Not Designated as Hedging Instrument        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives not designated as hedging instruments, location of realized/unrealized gain (576,464) (41,008)    
Bunker swaps - unrealized gain | Level 2 | Not Designated as Hedging Instrument | Fair value of derivatives - current        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative liability 8,224,706     96,043
Bunker swaps - unrealized gain | Level 2 | Realized and unrealized (gain)/loss on derivative instruments, net | Not Designated as Hedging Instrument        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives not designated as hedging instruments, location of realized/unrealized gain (5,665,196) $ (1,226,959)    
Bunker swaps - Unrealized loss | Level 2 | Not Designated as Hedging Instrument | Fair value of derivatives - current        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative liability $ 3,219,696     $ 756,229