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ACCRUED EXPENSES AND OTHER LIABILITIES
 12 Months Ended
Dec. 31, 2012
ACCRUED EXPENSES AND OTHER LIABILITIES [Abstract]  
ACCRUED EXPENSES AND OTHER LIABILITIES
4. ACCRUED EXPENSES AND OTHER LIABILITIES
 
Accrued expenses and other liabilities at December 31 are summarized as follows:

   
2012
  
2011
 
   
(in thousands)
 
        
Payroll
 $2,733  $1,829 
Accrued vacation
  1,872   1,960 
Taxes—other than income
  2,063   1,956 
Interest
  152   114 
Driver escrows
  1,197   1,010 
Margin account borrowings
  10,711   - 
Self-insurance claims
  2,580   2,801 
          
Total accrued expenses and other liabilities
 $21,308  $9,670