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Segment Information (Tables)
12 Months Ended
Dec. 31, 2015
Segment Reporting [Abstract]  
Net Sales to Foreign Customers

Net sales to unaffiliated customers are to U.S. customers except foreign export sales as follows:

 

Geographic Area

 

2015

 

 

2014

 

 

2013

 

 

 

(In Thousands)

 

Canada

 

$

2,711

 

 

$

1,358

 

 

$

2,299

 

Other

 

 

1,006

 

 

 

798

 

 

 

685

 

 

 

$

3,717

 

 

$

2,156

 

 

$

2,984