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INVENTORIES
9 Months Ended
Sep. 30, 2021
INVENTORIES  
INVENTORIES

5.          INVENTORIES

Inventory costs include materials, labor and factory overhead. Inventories are stated at the lower of cost or net realizable value, determined on a first-in, first-out basis. Appropriate consideration is given to obsolescence, valuation and other factors in determining net realizable value. Revisions of these estimates could result in the need for adjustments. Inventories, net of reserves, at September 30, 2021 and December 31, 2020 consisted of the following:

    

2021

    

2020

Chassis

$

6,493

$

6,859

Raw materials

 

51,897

 

36,161

Work in process

 

33,932

 

16,282

Finished goods

 

16,516

 

24,637

$

108,838

$

83,939