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Note 12 - Segment Information (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
  

Three Months Ended June 30,

  

Six Months Ended June 30,

 
  

2022

  

2021

  

2022

  

2021

 

Net sales:

                

Engineered Steel Pressure Pipe

 $77,068  $58,748  $151,783  $118,805 

Precast Infrastructure and Engineered Systems

  41,454   15,064   76,070   27,318 

Total

 $118,522  $73,812  $227,853  $146,123 
                 

Gross profit:

                

Engineered Steel Pressure Pipe

 $11,105  $6,615  $18,294  $13,769 

Precast Infrastructure and Engineered Systems

  12,975   2,923   20,572   4,544 

Total

 $24,080  $9,538  $38,866  $18,313