INVENTORIES

3 Months Ended

Mar. 31, 2022

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, 2022 and December 31, 2021 consisted of the following:

	2022		2021
Chassis	$	6,664	$	5,753
Raw materials		62,628		59,651
Work in process		38,398		33,994
Finished goods		16,658		15,510
	$	124,348	$	114,908