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Note 10 - Segment Information (Tables)
3 Months Ended
Mar. 31, 2017
Notes Tables  
Schedule Of Segment Reporting Information By Segment Statement Of Operations [Table Text Block]
 
 
Three Months Ended March 31,
 
 
 
2017
 
 
2016
 
 
 
(in thousands)
 
Net sales:
               
Water Transmission
  $
29,657
    $
29,358
 
Tubular Products
   
9
     
4,570
 
Total
  $
29,666
    $
33,928
 
                 
Gross profit (loss):
               
Water Transmission
  $
1,165
    $
(5,750
)
Tubular Products
   
(385
)    
313
 
Total
  $
780
    $
(5,437
)
                 
                 
Operating income (loss):
               
Water Transmission
  $
(914
)   $
(7,256
)
Tubular Products
   
(430
)    
104
 
Corporate
   
(2,597
)    
(2,884
)
Total
  $
(3,941
)   $
(10,036
)