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Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2012
Fair Value Measurements [Abstract]  
Schedule of financial assets, excluding pension assets, at fair value
As indicated in the table below (which excludes the Company's pension assets), the Company has determined that all its financial assets and liabilities at June 30, 2012 and December 31, 2011 are level 1 and level 2 in the fair value hierarchy as defined above (in thousands):

   
June 30, 2012
 
   
Level 1
  
Level 2
  
Level 3
  
Total
 
Financial Assets:
            
Trading equity securities:
            
SERP money market fund
 $993  $-  $-  $993 
SERP mutual funds
  2,054   -   -   2,054 
Preferred stocks
  717   -   -   717 
Trading debt securities:
                
Corporate bonds
  2,071   1,443   -   3,514 
Municipal bonds
  1,246   1,767   -   3,013 
Floating rate notes
  695   423   -   1,118 
U.S. Treasury bill
  250   -   -   250 
Other government bonds
  -   278   -   278 
    Total financial assets
 $8,026  $3,911  $-  $11,937 
                  
Financial Liabilities:
                
SERP liabilities
 $6,342  $-  $-  $6,342 
Derivative financial instruments
  -   129   -   129 
    Total financial liabilities
 $6,342  $129  $-  $6,471 
 

   
December 31, 2011
 
   
Level 1
  
Level 2
  
Level 3
  
Total
 
Financial Assets:
            
Trading equity securities:
            
SERP money market fund
 $989  $-  $-  $989 
SERP mutual funds
  1,732   -   -   1,732 
Preferred stocks
  441   -   -   441 
Trading debt securities:
                
Corporate bonds
  1,649   2,238   -   3,887 
Municipal bonds
  211   2,880   -   3,091 
Floating rate notes
  97   233   -   330 
U.S. Treasury bill
  250   -   -   250 
Other government bonds
  -   343   -   343 
Derivative financial instruments
  -   307   -   307 
    Total financial assets
 $5,369  $6,001  $-  $11,370 
                  
Financial Liabilities:
                
SERP liabilities
 $6,076  $-  $-  $6,076 
Derivative financial instruments
  -   50   -   50 
    Total financial liabilities
 $6,076  $50  $-  $6,126 
 
Schedule of company investments (other than pension assets)
The Company's investments (other than pension assets) consist of the following (in thousands):
   
Amortized
Cost
  
Gross
Unrealized
Gains
  
Gross
Unrealized
Losses
  
Fair
Value (Net
Carrying Amount)
 
June 30, 2012:
            
  Trading equity securities
 $3,606  $171  $13  $3,764 
  Trading debt securities
  8,037   218   82   8,173 
   $11,643  $389  $95  $11,937 
                  
December 31, 2011:
                
  Trading equity securities
 $3,160  $81  $79  $3,162 
  Trading debt securities
  7,761   211   71   7,901 
   $10,921  $292  $150  $11,063