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Derivative Instruments and Fair Value Measurements - Additional Information (Details)
1 Months Ended 3 Months Ended 9 Months Ended
Jan. 31, 2020
USD ($)
numberOfVessel
numberOfContract
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Purchase of derivative instrument       $ 628,000 $ 0
Unrealized loss (gain) on derivative instruments   $ 18,098 $ 301,058 $ 1,530,875 (2,203,899)
London Interbank Offered Rate (LIBOR) Swap Rate [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Variable rate   3.25%   3.25%  
Interest rate cap          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Number of interest rate cap contracts | numberOfContract 4        
Purchase of derivative instrument $ 628,000        
Unrealized loss (gain) on derivative instruments   $ (19,743) $ 0 $ 424,088 $ 0
Derivative, notional amount $ 22,800,000        
Number of new building vessels | numberOfVessel 4