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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Schedule of inventories, net of reserves

		2016				2015
Chassis		$	8,524			$	8,048
Raw materials			26,322				28,328
Work in process			11,620				10,850
Finished goods			17,670				19,006
		$	64,136			$	66,232

Schedule of property, plant and equipment

		2016				2015
Land and improvements		$	10,027			$	5,812
Buildings and improvements			57,697				42,230
Machinery and equipment			34,984				30,821
Furniture and fixtures			9,243				8,978
Software costs			10,281				10,066
			122,232				97,907
Less accumulated depreciation			(62,619	)			(58,432	)
		$	59,613			$	39,475

Schedule of accrued liabilities

		2016				2015
Accrued wages, commissions, bonuses and benefits		$	7,452			$	6,482
Accrued products warranty			2,821				3,140
Accrued income taxes			2,887				4,747
Other			7,567				6,720
		$	20,727			$	21,089

Schedule of product warranty liability

		2016				2015
Accrual at beginning of the year		$	3,140			$	2,622
Provision			1,750				3,076
Settlement and Other			(2,069	)			(2,558	)
Accrual at end of year		$	2,821			$	3,140

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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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Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.

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