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Investments
6 Months Ended
Jun. 30, 2011
Investments, Debt and Equity Securities [Abstract]  
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Note 3.  Investments
 
The following tables summarize the Company’s held-to-maturity investments (in thousands):

June 30, 2011
 
Amortized Cost
   
Gross
Unrealized
Gains
   
Gross
Unrealized
Losses
   
Fair Value
 
                         
Corporate debt securities
  $ 6,147     $ 71     $ (2 )   $ 6,216  
Municipal securities
    486       5       -       491  
Total
  $ 6,633     $ 76     $ (2 )   $ 6,707  
 
December 31, 2010
 
Amortized Cost
   
Gross
Unrealized
Gains
   
Gross
Unrealized
Losses
   
Fair Value
 
                         
Corporate debt securities
  $ 501     $ 11     $ -     $ 512  
Municipal securities
    472       39       -       511  
Total
  $ 973     $ 50     $ -     $ 1,023  
 
All of our long-term investments had maturities of between one and two years in duration at June 30, 2011.