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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2021

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Schedule of inventories, net of reserves

​

​	​	​	​	​	​	​
​		2021			2020
Chassis	​	$	5,753	​	$	6,859
Raw materials	​		59,651	​		36,161
Work in process	​		33,994	​		16,282
Finished goods	​		15,510	​		24,637
​	​	$	114,908	​	$	83,939

Schedule of property, plant and equipment

​

​	​	​	​	​	​	​
​		2021			2020
Land and improvements	​	$	15,495	​	$	13,960
Buildings and improvements	​		79,299	​		83,320
Machinery and equipment	​		59,934	​		53,787
Furniture and fixtures	​		11,457	​		11,163
Software costs	​		10,383	​		6,327
​	​		176,568	​		168,557
Less accumulated depreciation	​		(80,072)	​		(69,937)
​	​	$	96,496	​	$	98,620

Schedule of accrued liabilities

​

​	​	​	​	​	​	​
​		2021			2020
Accrued wages, commissions, bonuses and benefits	​	$	10,056	​	$	10,510
Accrued products warranty	​		3,076	​		3,373
Accrued taxes	​		2,087	​		2,164
Other	​		9,647	​		8,726
​	​	$	24,866	​	$	24,773

Schedule of product warranty liability

​

​	​	​	​	​	​	​
​		2021			2020
Accrual at beginning of the year	​	$	3,373	​	$	3,859
Provision	​		2,416	​		2,915
Settlement and Other	​		(2,713)	​		(3,401)
Accrual at end of year	​	$	3,076	​	$	3,373

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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