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ACCRUED EXPENSES AND OTHER LIABILITIES (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
ACCRUED EXPENSES AND OTHER LIABILITIES [Abstract]    
Payroll $ 2,733,000 $ 1,829,000
Accrued vacation 1,872,000 1,960,000
Taxes - other than income 2,063,000 1,956,000
Interest 152,000 114,000
Driver escrows 1,197,000 1,010,000
Margin account borrowings 10,711,000 0
Self-insurance claims 2,580,000 2,801,000
Total accrued expenses and other liabilities $ 21,308,000 $ 9,670,000