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10Q INVENTORIES
3 Months Ended
Mar. 31, 2023
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 moving average unit cost 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 March 31, 2023 and December 31, 2022 consisted of the following:

March 31, 

December 31, 

    

2023

    

2022

Chassis

$

18,125

$

18,604

Raw materials

 

77,852

 

75,934

Work in process

 

42,588

 

40,655

Finished goods

 

25,866

 

18,463

$

164,431

$

153,656