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Fair Value Measurements
6 Months Ended
Jun. 30, 2011
Fair Value Measurements [Abstract]  
FAIR VALUE MEASUREMENTS
4. FAIR VALUE MEASUREMENTS
U.S. GAAP defines fair value, establishes a framework for measuring fair value, expands disclosures about fair value measurements, and establishes a three-tier fair value hierarchy which prioritizes the inputs used in measuring fair value. These tiers include:
    Level 1 which is defined as observable inputs such as quoted prices in active markets;
    Level 2 which is defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and
    Level 3 which is defined as unobservable inputs in which little or no market data exists therefore requiring an entity to develop its own assumptions.
The carrying value approximates fair value for our cash and cash equivalents due to the short-term nature of these financial instruments. The fair value of fixed-term deposits, which were included in other current assets, approximates their carrying values as the principal was fixed. Our long-term debt had a fixed interest rate and the fair value was determined by discounting cash flows of future interest accruals at market rates currently offered for borrowings with similar remaining maturities or repricing terms. Deferred compensation consisted of deferred cash fees for members of our Board of Directors that were issued as deferred cash units, the fair value of which is remeasured each period based on our closing stock price and were included in long-term other liabilities.
The liability for deferred compensation below was the only financial instrument that was remeasured on a recurring basis as of the respective reporting dates and we determined that the liability was Level 1 in the fair value hierarchy. The fair value estimates of our financial instruments were as follows (in thousands):
                                 
    June 30, 2011     December 31, 2010  
    Carrying     Estimated     Carrying     Estimated  
    Value     Fair Value     Value     Fair Value  
Assets
                               
Cash and cash equivalents
  $ 71,720     $ 71,720     $ 61,917     $ 61,917  
Restricted fixed term deposit
    2,000       2,000       2,000       2,000  
Liabilities
                               
Debt obligation, excluding current portion
    27       29       35       36  
Deferred compensation
    408       408       298       298