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Accrued Liabilities
12 Months Ended
Dec. 31, 2019
Accrued Liabilities [Abstract]  
Accrued Liabilities
Accrued Liabilities

Accrued liabilities are comprised of the following:

 
 
December 31,
 
 
2018
 
2019
Interest on long-term debt
 
$
4,225

 
$
1,588

Vessels’ operating and voyage expenses
 
1,808

 
4,223

Commissions
 
139

 
176

Interest on derivatives and other finance expenses
 
566

 
511

General and administrative expenses
 
145

 
97

Total
 
$
6,883

 
$
6,595