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FAIR VALUE MEASUREMENTS (Tables)
3 Months Ended
Mar. 31, 2013
FAIR VALUE MEASUREMENTS [Abstract]  
Fair Value of Assets and Liabilities Measured on a Recurring Basis
The following items are measured at fair value on a recurring basis subject to disclosure requirements of ASC Topic 820 at March 31, 2013, and December 31, 2012:

Liabilities Measured at Fair Value on a Recurring Basis

      
Fair Value Measurements Using
 
   
March 31, 2013
  
Level 1
  
Level 2
  
Level 3
 
   
(thousands of dollars)
 
Liabilities:
            
Interest rate swap
 $808   -  $808   - 

      
Fair Value Measurements Using
 
   
December 31, 2012
  
Level 1
  
Level 2
  
Level 3
 
   
(thousands of dollars)
 
Liabilities:
            
Interest Rate Swap
 $893   -  $893   -