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Inventories (Tables)
3 Months Ended
Mar. 31, 2018
Inventories [Abstract]  
Schedule of Inventory, Current

   Inventory cost includes material, labor and overhead. Inventories consisted of the following:





 

 

 

 

 



 

 

March 31,

 

December 31,



 

 

2018 

 

2017 

Raw materials

 

$

48,311 

$

47,588 

Work-in-progress

 

 

8,095 

 

5,806 

Finished goods

 

 

22,222 

 

20,077 

Total inventories, net

 

$

78,628 

$

73,471