XML 35 R13.htm IDEA: XBRL DOCUMENT v2.4.0.6
Allowance for Doubtful Accounts, Sales Returns and Discounts
 12 Months Ended
Dec. 31, 2011
Allowance For Doubtful Accounts Sales Returns and Discounts [Abstract]  
Allowance For Doubtful Accounts Sales Returns and Discounts [Text Block]
Note 4. 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, 2009, 2010 and 2011 follows:

 

Allowance for doubtful accounts

 

Period   Balance at
beginning
of year		     Charges
(credits) to
earnings		     Amounts
utilized		     Balance at
end of
year		  
    (in thousands)  
                         
For the year ended December 31, 2009   $ 25,297       218       -       25,515  
For the year ended December 31, 2010   $ 25,515       (8,788 )     -       16,727  
For the year ended December 31, 2011   $ 16,727       (1,541 )     -       15,186  

  

Allowance for sales returns and discounts

 

Period   Balance at
beginning
of year		     Additions    
Amounts 
utilized		     Balance at
end of
year		  
    (in thousands)  
                         
For the year ended December 31, 2009   $ 162       2,391       (1,583 )     970  
For the year ended December 31, 2010   $ 970       4,551       (4,930 )     591  
For the year ended December 31, 2011   $ 591       3,385       (3,191 )     785