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Accrued and Other Liabilities
12 Months Ended
Dec. 31, 2022
Payables and Accruals [Abstract]  
Accrued and Other Liabilities
8. Accrued and Other Liabilities
The amounts shown in the accompanying consolidated balance sheets are analyzed as follows:

 
 
  
December 31,
 
 
  
2021
 
  
2022
 
Interest on long-term debt
     1,883,321        3,540,755  
Administrative expenses
     210,930        177,551  
Vessel operating and voyage expenses
     1,748,628        2,065,686  
Proceeds from sale of vessel collected in advance
     —          1,140,000  
    
 
 
    
 
 
 
Total
  
 
3,842,879
 
  
 
6,923,992