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RESERVES
 12 Months Ended
Dec. 31, 2012
RESERVES  
RESERVES

13.   RESERVES

        Allowance for doubtful accounts and reserves for environmental liability for 2012 and 2011 are as follows:

Description
  Balance at
Beginning of
Period		   Additions   Deductions   Balance at
End of Period		  
 
   (in thousands)
  

Allowance for Doubtful Accounts

                          

2012

   $ 519   $ 212   $ (469 ) $ 262  

2011

   $ 460   $ 90   $ (31 ) $ 519  


 

Description
  Balance at
Beginning of
Period		   Additions   Deductions   Balance at
End of Period		  
 
   (in thousands)
  

Reserve for Environmental Liability

                          

2012

   $ 866   $ —   $ (191 ) $ 675  

2011

   $ 1,187   $ 4   $ (325 ) $ 866