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Trade Accounts and Notes Receivable (Tables)
 12 Months Ended
Dec. 31, 2013
Trade Accounts and Notes Receivable
Trade accounts and notes receivable from customers at December 31, 2013 and 2012 consist of the following:
(In thousands)
2013
 
2012
Accounts receivable
$
94,613

 
$
86,717

Notes receivable
9,039

 
9,613

 
103,652

 
96,330

Less allowance for doubtful accounts
1,779

 
2,314

 
$
101,873

 
$
94,016