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Uncertain Tax Positions (Tables)
6 Months Ended
Jun. 30, 2011
Uncertain Tax Positions [Abstract]  
Reconciliation of unrecognized tax benefits
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands of dollars):

Balance at January 1, 2011
 $1,838 
      
Gross increases- current year tax positions
  181 
Gross increases- tax positions from prior periods
  2 
Gross decreases- tax positions from prior periods
  (12)
Settlements
  - 
      
Balance at June 30, 2011
 $2,009 
      
The Company has unrecognized tax positions for which it is reasonably possible that the total amounts of unrecognized tax benefits will significantly increase or decrease within the next twelve months.  The unrecognized tax benefits relate to tax credits and other various deductions.  The Company estimates the change to be approximately $0.6 million.

The Company’s continuing practice is to recognize interest and penalties related to income tax matters in administrative costs.  The Company had $0.2 million accrued for interest and penalties at December 31, 2010.  Negligible interest and penalties were recognized during the three and six months ended June 30, 2011.