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INVENTORIES (Tables)
 3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventories for ferrous and non-ferrous materials

Inventories for ferrous and non-ferrous materials as of March 31, 2019 and December 31, 2018 consist of the following: 

 


 


 

 

 

 

 

March 31, 2019

  

 

(unaudited)

 

December 31, 2018

 

(in thousands)

Raw materials

$

4,017


 

$

4,485

 

Finished goods

1,073


 

1,284

 

Processing costs

1,121


 

1,165

 

Total inventories for sale

$

6,211


 

$

6,934