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Inventories (Tables)
3 Months Ended
Mar. 31, 2022
Inventories [Abstract]  
Inventory Stated at Cost, Net of Reserve
Inventory stated at cost, net of reserve, consisted of the following:

   
March 31,
2022
   
December 31,
2021
 
Materials
 
$
132,185
     
111,531
 
Work in progress
   
55,709
     
12,795
 
Finished goods
   
35,114
     
83,944
 
Inventory, net
 
$
223,008
     
208,270