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Other Comprehensive Income
 3 Months Ended
Mar. 31, 2012
Other Comprehensive Income [Abstract]  
Other Comprehensive Income

3. OTHER COMPREHENSIVE INCOME
Other comprehensive income consists of changes in the unrealized gain on available-for-sale securities and the effective portion of a cash flow hedge that matured in October 2011. The tax effects allocated to each component of other comprehensive income are as follows:

 

Quarters Ended March 31,

    2012      2011  

Unrealized gain on derivative instrument

    $ —         $ 115   

Income tax expense

      —           44   
  

 

 

     

 

 

  

Unrealized gain on derivative instrument, net of tax

      —           71   
  

 

 

     

 

 

  

Unrealized gain on available-for-sale securities

      25         11   

Income tax expense

      9         4   
  

 

 

     

 

 

  

Unrealized gain on available-for-sale securities, net of tax

      16         7   
  

 

 

     

 

 

  

Other comprehensive income

    $ 16       $ 78   
  

 

 

     

 

 

  

 

The changes in accumulated other comprehensive loss, net of tax, are as follows:

 

Quarters Ended March 31,

    2012      2011  

Derivative instrument:

      

Beginning balance

    $ —         $ 238   

Current period other comprehensive income

      —           71   
  

 

 

     

 

 

  

Ending balance

      —           167   
  

 

 

     

 

 

  

Available-for-sale securities:

      

Beginning balance

      352         355   

Current period other comprehensive income

      16         7   
  

 

 

     

 

 

  

Ending balance

      336         348   
  

 

 

     

 

 

  

Accumulated other comprehensive loss, net of tax

    $ 336       $ 515