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Allowance for Doubtful Accounts, Sales Returns and Discounts
 12 Months Ended
Dec. 31, 2012
Allowance For Doubtful Accounts Sales Returns and Discounts [Abstract]  
Allowance For Doubtful Accounts Sales Returns and Discounts [Text Block]
Note 5. Allowance for Doubtful Accounts, Sales Returns and Discounts

 

The activity in the allowance for doubtful accounts, sales returns and discounts for the years ended December 31, 2010, 2011 and 2012 follows:

 

Allowance for doubtful accounts

 

Period  

Balance at

beginning

of year

    

Charges
(credits) to

earnings

    

 

Amounts
utilized

    

Balance at

end of
year

  
    (in thousands)  
                         
Year 2010   $ 25,515       (8,788 )     -       16,727  
Year 2011   $ 16,727       (1,541 )     -       15,186  
Year 2012   $ 15,186       -       -       15,186  

 

Allowance for sales returns and discounts

 

Period  

Balance at

beginning
of year

     Additions    

 

Amounts
utilized

    

Balance at

end of
year

  
    (in thousands)  
                         
Year 2010   $ 970       4,551       (4,930 )     591  
Year 2011   $ 591       3,385       (3,191 )     785  
Year 2012   $ 785       7,386       (7,093 )     1,078