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Accrued Liabilities
 12 Months Ended
Dec. 31, 2016
Accrued Liabilities [Abstract]  
Accrued Liabilities
9. Accrued Liabilities
Accrued liabilities consist of the following:
 
 
 
 
 
 
 
 
 
 
 
  
As of December 31,
 
 
  
2016
 
  
2015
 
Accrued loan interest and loan fees
  
$
114
  
  
$
1,226
  
Accrued operating expenses
  
 
4,360
  
  
 
4,520
  
Accrued voyage expenses and commissions
  
 
2,453
  
  
 
1,188
  
Accrued general and administrative expenses
  
 
934
  
  
 
938
  
Total
  
$
7,861
  
  
$
7,872