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Allowance for Doubtful Accounts, Sales Returns and Discounts
 12 Months Ended
Dec. 31, 2014
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, 2012, 2013 and 2014 follows:
 
Allowance for doubtful accounts
 
Period
 
 
Balance at
beginning
of year
 
Charges to
earnings
 
Amounts
utilized
 
Balance at
end of
year
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Year 2012
 
$
15,186
 
 
-
 
 
-
 
 
15,186
 
Year 2013
 
$
15,186
 
 
173
 
 
-
 
 
15,359
 
Year 2014
 
$
15,359
 
 
554
 
 
(15,186)
 
 
727
 
 
Allowance for sales returns and discounts
 
Period
 
Balance at
beginning
of year
 
Additions
 
Amounts
utilized
 
Balance at
end of
year
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Year 2012
 
$
785
 
 
7,386
 
 
(7,093)
 
 
1,078
 
Year 2013
 
$
1,078
 
 
7,272
 
 
(7,421)
 
 
929
 
Year 2014
 
$
929
 
 
5,168
 
 
(5,229)
 
 
868